WSR 10-18-103

PROPOSED RULES

DEPARTMENT OF

LABOR AND INDUSTRIES

[ Filed September 1, 2010, 9:41 a.m. ]

     Original Notice.

     Preproposal statement of inquiry was filed as WSR 09-19-121.

     Title of Rule and Other Identifying Information: Factory assembled structures, chapters 296-150C, 296-150F, 296-150M, 296-150P, 296-150R, 296-150T, and 296-150V WAC.

     Hearing Location(s): Department of Labor and Industries, 7273 Linderson Way S.W., S119, Tumwater, WA, on October 5, 2010, at 10:00 a.m.

     Date of Intended Adoption: November 16, 2010.

     Submit Written Comments to: Sally Elliott, Department of Labor and Industries, P.O. Box 44400, Olympia, WA 98504-4400, e-mail yous235@lni.wa.gov, fax (360) 902-5292, by October 5, 2010.

     Assistance for Persons with Disabilities: Contact Sally Elliott by September 22, 2010, (360) 902-6411 or yous235@lni.wa.gov.

     Purpose of the Proposal and Its Anticipated Effects, Including Any Changes in Existing Rules: The department reviewed the factory assembled structure rules to ensure the rules are consistent with industry practice, are clear, and for possible housekeeping changes.

     The following changes will be made:


• Amend language to reflect current code references. For example, references to the Uniform Building Code will be changed to the International Building Code.
• Amend the process to require manufacturers to maintain a contractor deposit (CD) account for inspections. This is in response to an internal audit finding and no minimum balance is required for this account.
• Remove language that references community, trade, and economic development (CTED). There were a few references that were missed during the last rule making.

     Reasons Supporting Proposal: See Purpose above.

     Statutory Authority for Adoption: Chapter 43.22 RCW.

     Statute Being Implemented: Chapter 43.22 RCW.

     Rule is not necessitated by federal law, federal or state court decision.

     Name of Proponent: Department of labor and industries, governmental.

     Name of Agency Personnel Responsible for Drafting: Rich Ervin, Tumwater, Washington, (360) 902-5571; Implementation and Enforcement: Steve Mclain, Tumwater, Washington, (360) 902-6348.

     No small business economic impact statement has been prepared under chapter 19.85 RCW. The department determined the proposed rules do not require a small business economic impact statement because the costs associated with the proposed changes are exempted by law. The proposed changes integrate the new national consensus standards as adopted by the State Building Code and clarify the rule without changing its effect (see RCW 19.85.025 referencing RCW 34.05.310 (4)(c) and (d)).

     A cost-benefit analysis is required under RCW 34.05.328. A preliminary cost-benefit analysis may be obtained by contacting Sally Elliott, Legislation and Rules Manager, P.O. Box 44400, Olympia, WA 98504-4400, phone (360) 902-6411, fax (360) 902-5292, e-mail yous235@lni.wa.gov.

September 1, 2010

Judy Schurke

Director

OTS-3309.4


AMENDATORY SECTION(Amending WSR 05-23-002, filed 11/3/05, effective 12/4/05)

WAC 296-150C-0320   What must I provide with my request for commercial coach design-plan approval by the department?   All requests for design-plan approval must include:

     (1) A completed design-plan approval request form;

     (2) Two sets of design plans plus elevation drawings, specifications, engineering analysis, and test results and procedures necessary for a complete evaluation of the design; (see WAC 296-150C-0340 and 296-150C-0350.)

     (3) At least one set of design plans must have an original wet stamp from a professional engineer or architect licensed in Washington state. All new, renewed, and resubmitted plans, specifications, reports and structural calculations prepared by or prepared under his or her direct supervision shall be signed, dated and stamped with their seal. Specifications, reports, and structural calculations may be stamped only on the first sheet, provided this first sheet identifies all of the sheets that follow are included and identified in the same manner. Plans that have not been prepared by or under the engineer's or architect's supervision shall be reviewed by them and they shall prepare a report concerning the plans reviewed. This report shall:

     (a) Identify which drawings have been reviewed by drawing number and date;

     (b) Include a statement that the plans are in compliance with current Washington state regulations; and

     (c) The report shall be stamped and signed by the reviewer.

     Any deficiencies shall be corrected on the drawings before submitting to the department or be included in the report and identify as to how they are to be corrected. This report shall be attached to the plan(s) that were reviewed. We will retain the set with the original wet stamp;

     (4) Receipt of a one-time initial design plan filing fee and the initial design plan fee (see WAC 296-150C-3000);

     (5) A "key drawing" to show the arrangement of modules if the plan covers three or more modules;

     (6) The occupancy class of the commercial coach according to the occupancy classifications in the ((Uniform)) International Building Code;

     (7) Electrical plan review for educational, institutional or health care facilities and other buildings. Plan review is a part of the electrical inspection process; its primary purpose is to determine:

     (a) That loads and service/feeder conductors are calculated and sized according to the proper ((NCE)) NEC or WAC article or section;

     (b) The classification of hazardous locations; and

     (c) The proper design of emergency and standby systems.

     (8) All electrical plans for new or altered electrical installations in educational, institutional, and health or personal care occupancies classified or defined in this chapter must be reviewed and approved before the electrical installation or alteration is started. Approved plans must be available for use during the electrical installation or alteration and for use by the electrical inspector.

     (9) All electrical plans for educational facilities, hospitals and nursing homes must be prepared by, or under the direction of, a consulting engineer registered under chapter 18.43 RCW in compliance with chapters 246-320, 180-29, and 388-97 WAC as applicable and stamped with the engineer's mark and signature.

     (10) Plans to be reviewed by the department must be legible, identify the name and classification of the facility, clearly indicate the scope and nature of the installation and the person or firm responsible for the electrical plans. The plans must clearly show the electrical installation or alteration in floor plan view, include switchboard and/or panel board schedules and when a service or feeder is to be installed or altered, must include a riser diagram, load calculation, fault current calculation and interrupting rating of equipment. Where existing electrical systems are to supply additional loads, the plans must include documentation that proves adequate capacity and ratings. The plans must be submitted with a plan review submittal form available from the department.

[Statutory Authority: Chapter 43.22 RCW. 05-23-002, § 296-150C-0320, filed 11/3/05, effective 12/4/05. Statutory Authority: RCW 43.22.340 and 43.22.480. 99-13-010, § 296-150C-0320, filed 6/4/99, effective 7/5/99. Statutory Authority: Chapter 43.22 RCW. 98-14-078, § 296-150C-0320, filed 6/30/98, effective 7/31/98. Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150C-0320, filed 10/23/96, effective 11/25/96.]


NEW SECTION
WAC 296-150C-0495   Contractor deposit accounts.   Manufacturers are required to open and maintain, for the purpose of inspection payments, a deposit account. Funds, for the purpose of inspections performed by the department, must be withdrawn from the account and all inspections paid in full prior to an insignia being placed on the manufactured unit.

[]


AMENDATORY SECTION(Amending WSR 05-01-102, filed 12/14/04, effective 2/1/05)

WAC 296-150C-0800   What manufacturing codes apply to commercial coaches?   (1) All design, construction, and installations of commercial coaches must conform with the following codes and the requirements of this chapter:

     (a) The latest adopted version of the Washington State Ventilation and Indoor Air Quality Code, as adopted by chapter 51-13 WAC;

     (b) The structural and other requirements of this chapter;

     (c) Occupancy classification only from chapter 3 of the International Building Code, ((2003)) current edition, as adopted and amended by chapter 51-50 WAC, except commercial coaches must not be group H or R-3 occupancy;

     (d) Accessibility requirements of chapter 11 of the International Building Code, ((2003)) current edition, as adopted and amended by chapter 51-50 WAC;

     (e) Section 1607 Uniform and concentrated floor loads and footnotes of the International Building Code, ((2003)) current edition, as adopted and amended by chapter 51-50 WAC;

     (f) The International Mechanical Code, ((2003)) current edition, as adopted and amended by chapter 51-52 WAC except when conflicting with the provisions of this chapter, this chapter controls;

     (g) The National Electrical Code as referenced in chapter 19.28 RCW and chapter 296-46B WAC;

     (h) The ((latest adopted version of the)) Washington State Energy Code, current edition, as adopted according to chapter 19.27A RCW;

     (i) The Uniform Plumbing Code, current edition, as adopted and amended according to chapter 19.27 RCW;

     (j) Where there is a conflict between codes, an earlier named code takes precedent over a later named code. Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive governs. Where there is a conflict between a general requirement and a special requirement, the specific requirement must be applicable.

     (2) All construction methods and installations must use accepted engineering practices, provide minimum health and safety to the occupants of commercial coaches and the public, and demonstrate journeyman quality of work of the various trades.

     (3) Requirements for any size, weight, or quality of material modified by the terms "minimum," "not less than," "at least," and similar expressions are minimum standards. The manufacturer may exceed these rules provided the deviation does not result in inferior installation or defeat the purpose and intent of this chapter.


Note: The codes, RCW's and WAC's referenced in this rule are available to view at the Washington State Library, the Washington State Law Library, and may also be available at your local library.

[Statutory Authority: Chapter 43.22 RCW and 2003 c 291. 05-01-102, § 296-150C-0800, filed 12/14/04, effective 2/1/05. Statutory Authority: RCW 43.22.350, 43.22.434, 43.22.480, 43.22.500, 18.27.040, 18.27.070, 18.27.075, 70.87.030, 19.28.041, 19.28.051, 19.28.101, 19.28.121, 19.28.161, 19.28.201, 19.28.211, 19.28.341, 2001 c 7, 2002 c 249, and chapters 19.28, 43.22, 18.27, and 70.87 RCW. 02-12-022, § 296-150C-0800, filed 5/28/02, effective 6/28/02. Statutory Authority: Chapter 43.22 RCW. 98-14-078, § 296-150C-0800, filed 6/30/98, effective 7/31/98. Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150C-0800, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 99-13-010, filed 6/4/99, effective 7/5/99)

WAC 296-150C-0810   Construction definitions.   The following definitions and the definitions in each of the state codes adopted in WAC 296-150C-0800 apply to commercial coach construction.

     "Anchoring system" is the means used to secure a commercial coach to ground anchors or to other approved fastening devices. It may include straps, cables, turnbuckles, bolts, fasteners, or other components.

     "Ceiling height" is the clear vertical distance from the finished floor to the finished ceiling.

     "Chassis" means that portion of the transportation system comprised of the following: Drawbar coupling mechanism and frame.


EXCEPTION: The running gear assembly shall not be considered as part of the chassis.

     "Dead load" is the vertical load resulting from the weight of all permanent structural and nonstructural parts of a commercial coach including walls, floors, roof, partitions, and fixed service equipment.

     "Diagonal tie" is a tie intended primarily to resist horizontal or shear forces and secondarily may resist vertical, uplift, and overturning forces.

     "Dormitory" is a room designed to be occupied by more than two persons.

     "Exit" is a continuous and unobstructed means of egress to a public way.

     "Frame" means the fabricated rigid substructure, which provides support to the affixed commercial coach structure both during transport and onsite. It is considered a part of the commercial coach.

     "Glazed opening" is a glazed skylight or an exterior window or glazing of a door of a commercial coach.

     "Gross floor area" is the net floor area within the enclosing walls of a room where the ceiling is at least five feet high.

     "Habitable room" is a room or enclosed floor space arranged for living, eating, food preparation, or dormitory sleeping purposes. It does not include bathrooms, toilet compartments, foyers, hallways, or other accessory floor spaces. Any reference to "habitable dwelling" in this chapter means a temporary structure not used as a single family dwelling.

     "Interior finish" is the surface material of walls, fixed or movable partitions, ceilings and other exposed interior surfaces affixed to the commercial coach structure, including paint and wallpaper. Decorations or furnishings attached to the commercial coach structure are considered part of the interior finish.

     "Live load" is the weight superimposed by the use and occupancy of the commercial coach, including wind load and snow load, but not including dead load.

     "Perimeter blocking" is support placed under exterior walls.

     "Shear wall" is a wall designed and constructed to transfer lateral loads.

     "Tiedown" is a device designed to anchor a commercial coach to ground anchors.

     "Use" or "occupancy classification" is the designed purpose of a commercial coach according to the ((Uniform)) International Building Code.

     "Wind load" is the lateral or vertical pressure or uplift created by wind blowing in any direction.

[Statutory Authority: RCW 43.22.340 and 43.22.480. 99-13-010, § 296-150C-0810, filed 6/4/99, effective 7/5/99. Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150C-0810, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 05-01-102, filed 12/14/04, effective 2/1/05)

WAC 296-150C-1150   Hallways.   (1) Hallways in structures required to meet accessibility standards must have a minimum horizontal dimension that conforms to accessibility standards set by the ((Washington state Uniform)) International Building Code, current edition, standards set in the accessibility standard in WAC 296-150C-0800 (1)(d).

     (2) Hallways in nonaccessible construction site trailers must have a minimum horizontal dimension of 32 inches.

[Statutory Authority: Chapter 43.22 RCW and 2003 c 291. 05-01-102, § 296-150C-1150, filed 12/14/04, effective 2/1/05. Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150C-1150, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 96-21-146, filed 10/23/96, effective 11/25/96)

WAC 296-150C-1330   Mechanical -- General.   This chapter applies to the installation of mechanical, ventilation, and indoor air quality equipment in any commercial coach bearing or required to bear a department insignia. Mechanical, ventilation, and indoor air quality equipment and installations in or on a commercial coach shall be installed according to the requirements of the ((Uniform)) International Mechanical Code((, the Washington State Ventilation and Indoor Air Quality Code, the rules of this chapter, and the conditions of the equipment approval or listing agency)), current edition.

[Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150C-1330, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 96-21-146, filed 10/23/96, effective 11/25/96)

WAC 296-150C-1340   Mechanical definitions.   Definitions contained in the current adopted edition of the ((Uniform)) International Mechanical Code, current edition, and the following definitions apply to the commercial coaches.

     "Accessible" is having access to a fixture, connection, appliance, or equipment that requires the removal of an access panel, door, or similar obstruction.

     "Appliance compartment" is a room having a floor area not in excess of twice the largest plan area of the room's appliance or appliances plus clearances required in this chapter.

     "Automatic pilot device" is a device employed with gas-burning equipment that will either automatically shut off the gas supply to the burner being served or automatically activate, electrically or otherwise, a gas shutoff device when the pilot flame is extinguished.

     "Btuh" is British thermal units per hour.

     "Clearance" is the distance between the appliance, chimney, vent, or chimney or vent connector, or plenum and the nearest surface.

     "Combustible material" is a material adjacent to or in contact with a heat-producing appliance, vent connector, chimney, or steam and hot water pipes, made of or surfaced with wood, compressed paper, plant fibers, or other products that will ignite and burn. Such material must be considered combustible even though flame-proofed, fire-retardant treated, or plastered.

     "Connector-gas appliance" is a flexible or semi-rigid connector listed as conforming to ANSI Standard Z21.24, Metal Connectors for Gas Appliances, used to convey fuel gas, three feet or less in length (six feet or less for gas ranges), between a gas outlet and a gas appliance in the same room.

     "Fuel gas piping system" is the arrangement of piping, tubing, fittings, connectors, valves, and devices designed and intended to supply or control the flow of fuel gas to an appliance.

     "Gas" is fuel gas, such as natural gas, manufactured gas, undiluted liquefied petroleum gas (vapor phase only), liquefied petroleum air-gas mixtures, or mixtures of these gases that would ignite in the presence of oxygen.

     "Gas-supply connection" is the terminal end or connection to which a gas-supply connector is attached.

     "Input rating" is the maximum fuel-burning capacity of any warm-air furnace, recessed heater, or burner expressed in British thermal units per hour.

     "Liquefied petroleum gases (LPG)" is any material that is composed predominantly of propane, propylene, butanes (normal butane or isobutane), and butylenes, or any mixture of them.

     "Quick-disconnect device" is a hand-operated means of connecting and disconnecting a gas supply or connecting gas systems and is equipped with an automatic device to shut off the gas supply when disconnected.

     "Readily accessible" is having direct access without the necessity of removing any panel, door, or similar obstruction.

[Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150C-1340, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 96-21-146, filed 10/23/96, effective 11/25/96)

WAC 296-150C-1470   Ventilation and indoor air quality -- General.   Ventilation and indoor air quality equipment and installations in or on a commercial coach must be made according to the requirements of ((the Washington State Ventilation and Indoor Air Quality Code,)) the ((Uniform)) International Mechanical Code, current edition, the rules of this chapter, and the conditions of the equipment approval.

[Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150C-1470, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 96-21-146, filed 10/23/96, effective 11/25/96)

WAC 296-150C-1480   Ventilation and indoor air quality definitions.   ((Definitions contained in the current adopted edition of the Washington State Ventilation and Indoor Air Quality Code and)) The ((Uniform)) International Mechanical Code, current edition, and the following definitions apply to the commercial coach ventilation and indoor air quality rules in this chapter.

     "Duct" is a conduit or passageway for conveying air to or from heating, cooling, air conditioning, or ventilation equipment, not including the plenum.

     "Plenum" is an air compartment that is part of an air-distributing system to which one or more ducts are connected.

• A furnace-supply plenum is a plenum attached directly to, or an integral part of, the air-supply outlet of the furnace.
• A furnace-return plenum is a plenum attached directly to, or an integral part of, the return inlet of the furnace.
     "Vent connector" is a pipe for conveying products of combustion from a fuel-burning appliance to a vent.

     "Water heater" is an appliance for heating water for domestic purposes other than for space heating.

[Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150C-1480, filed 10/23/96, effective 11/25/96.]

OTS-3310.3


AMENDATORY SECTION(Amending WSR 07-05-063, filed 2/20/07, effective 4/1/07)

WAC 296-150F-0020   What definitions apply to this chapter?   "Approved" is approved by the department of labor and industries.

     "Building site" is a tract, parcel, or subdivision of land on which a factory-built house or commercial structure will be installed.

     "Component" is a part or element of another system as defined by the International Building Code, section 202, and is:

     • Designed to be installed in a structure;

     • Manufactured as a unit; and

     • Designed for a particular function or group of functions.

     A component may be a service core or other assembly that is a factory assembled section of a building. It may include mechanical, electrical, plumbing, and related systems. It may be a complete kitchen, bathroom, or utility room. Service cores are referred to as "wet boxes," "mechanical cores," or "utility cores."

Note: A roof truss is not considered a component.


     "Damaged in transit" is damage that effects the integrity of the structural design or damage to any other system referenced in the codes required by the State Building Code, or other applicable codes.

     "Department" is the department of labor and industries. The department may also be referred to as "we" or "us" in this chapter. Note: You may contact us at: Department of Labor and Industries, Specialty Compliance, PO Box 44440, Olympia, WA 98504-4440.

     "Design plan" is a plan for the construction of factory-built housing, commercial structures, or components that includes floor plans, elevation drawings, specifications, engineering data, or test results necessary for a complete evaluation of the design.

     "Design option" is a design that a manufacturer may use as an option to its design plan.

     "Educational facility" is a building or portion of a building used primarily for educational purposes by six or more persons at one time for twelve hours per week or four hours in any one day. Educational occupancy includes: Schools (preschool through grade twelve), colleges, academies, universities, and trade schools.

     "Equipment" is all material, appliances, devices, fixtures, fittings, or accessories used in the manufacture, assembly, installation, or alteration of factory-built housing, commercial structures, and components.

     "Factory assembled structure (FAS) advisory board" is a board authorized to advise the director of the department regarding the issues and adoption of rules relating to factory-built housing, commercial structures and components. (See RCW 43.22.420.)

     "Health or personal care facilities" are buildings or parts of buildings that contain, but are not limited to, facilities that are required to be licensed by the department of social and health services or the department of health (e.g., hospitals, nursing homes, private alcoholism hospitals, private psychiatric hospitals, boarding homes, alcoholism treatment facilities, maternity homes, birth centers or childbirth centers, residential treatment facilities for psychiatrically impaired children and youths, and renal hemodialysis clinics) and medical, dental or chiropractic offices or clinics, outpatient or ambulatory surgical clinics, and such other health care occupancies where patients who may be unable to provide for their own needs and safety without the assistance of another person are treated. (Further defined in WAC ((296-46B-010)) 296-46B-900.)

     "Insignia" is a label that we attach to a structure to verify that a factory-built house or commercial structure meets the requirements of this chapter. It could also be a stamp or label attached to a component to verify that it meets the requirements of this chapter.

     "Install" is to erect or set in place a structure at a building site. It may also be the construction or assembly of a component as part of a factory-built house or commercial structure.

     "Institutional facility" is a building or portion of a building used primarily for detention and correctional occupancies where some degree of restraint or security is required for a time period of twenty-four or more hours. Such occupancies include, but are not restricted to: Penal institutions, reformatories, jails, detention centers, correctional centers, and residential-restrained care.

     "Listing agency" is an organization whose business is approving equipment, components, or installations for publication.

     "Local enforcement agency" is an agency of city or county government with power to enforce local regulations governing the installation of factory-built housing and commercial structures.

     "Manufacturing" is making, fabricating, forming, or assembling a factory-built house, commercial structure, or component.

     "Master design plan" is a design plan that expires when a new State Building Code has been adopted.

     (("Manufacturing" is making, fabricating, forming, or assembling a factory-built house, commercial structure, or component.))

     "One-year design plan" is a design plan that expires one year after approval or when a new State Building Code has been adopted.

     "Repair" is the replacement, addition, modification, or removal of any construction, equipment, system, or installation to correct damage in transit or during on-site installation before occupancy.

     "Temporary factory built structure" is a building built not set on a permanent foundation, which is used for temporary occupancy such as educational, commercial, or agricultural building. The building must meet the requirements of this section and the installation requirements. As required under RCW 43.22.480 all alterations to temporary built structures must be preapproved by the department.

     "Unit" is a factory-built house, commercial structure, or component.

     "Used structure" is a building as defined by section 202 of the International Building Code that has been given a certificate of occupancy by the local building department and has been occupied.

[Statutory Authority: Chapter 43.22 RCW. 07-05-063, § 296-150F-0020, filed 2/20/07, effective 4/1/07; 05-23-002, § 296-150F-0020, filed 11/3/05, effective 12/4/05; 98-14-078, § 296-150F-0020, filed 6/30/98, effective 7/31/98. Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150F-0020, filed 10/23/96, effective 11/25/96.]


NEW SECTION
WAC 296-150F-0090   What are the requirements for certified plumbers and electricians?   Plumbers certified under chapter 18.106 RCW and electricians certified under chapter 19.28 RCW are required for units constructed in Washington. For the purposes of construction at the manufacturing facility, the manufacturer is not required to be a licensed electrical contractor under chapter 19.28 RCW or a registered contractor as required by chapter 18.27 RCW. Manufacturers may hire registered plumbing contractors or licensed electrical contractors to meet this requirement.

     Work performed outside the manufacturer's facility must be performed by a registered contractor under chapter 18.27 RCW, electrical contractor and electricians under chapter 19.28 RCW, and certified plumbers under chapter 18.106 RCW.

[]


AMENDATORY SECTION(Amending WSR 96-21-146, filed 10/23/96, effective 11/25/96)

WAC 296-150F-0230   What are the insignia application requirements?   (1) If you are requesting insignia for units that you intend to manufacture under a new design plan, your completed application must include:

     (a) A completed design plan approval request form;

     (b) ((One)) Two complete sets of design plans, specifications, engineering analysis, test procedures and results, plus one additional set for each manufacturing location where the design plan will be used;

     (c) At least one set of design plans must have an original wet stamp from a professional engineer or architect licensed in Washington state. We will retain the set with the original wet stamp; and

     (d) A one-time initial filing fee, the design plan fee (if we approve your design plan) and the fee for each insignia. (See WAC 296-150F-3000.)

     (2) If you are requesting insignia under an approved design plan, your completed application must include:

     (a) A completed application for insignia form; and

     (b) The fee for each insignia requested. (See WAC 296-150F-3000.)

[Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150F-0230, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 96-21-146, filed 10/23/96, effective 11/25/96)

WAC 296-150F-0310   Who can approve design plans?   (1) Design plans can be approved by us or by a licensed professional or firm authorized by us (see WAC 296-150F-0420 and 296-150F-0430).

     (2) All electrical design plans for new or altered electrical installations for educational institutions, health care facilities, and other buildings (see chapter((s 296-46, 296-130, 296-140, and 296-150)) 296-46B WAC Table ((1)) 900-1 or ((2)) 900-2) must be reviewed and approved by us.

[Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150F-0310, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 07-05-063, filed 2/20/07, effective 4/1/07)

WAC 296-150F-0320   What must I provide with my request for design-plan approval by the department?   All requests for design-plan approval must include:

     (1) A completed design-plan approval request form;

     (2) Two complete sets of design plans, specifications, engineering analysis, test procedures and results plus one additional set for each manufacturing location where the design plan will be used (see WAC 296-150F-0340 and 296-150F-0350);

     (3) At least one set of design plans must have an original wet stamp from a professional engineer or architect licensed in Washington state. All new, renewed, and resubmitted plans, specifications, reports and structural calculations prepared by or prepared under his or her direct supervision shall be signed, dated and stamped with their seal. Specifications, reports, and structural calculations may be stamped only on the first sheet, provided this first sheet identifies all of the sheets that follow are included and identified in the same manner. Plans that have not been prepared by or under the engineer's or architect's supervision shall be reviewed by them and they shall prepare a report concerning the plans reviewed. This report shall:

     (a) Identify which drawings have been reviewed by drawing number and date;

     (b) Include a statement that the plans are in compliance with current Washington state regulations; and

     (c) The report shall be stamped and signed by the reviewer.

     Any deficiencies shall be corrected on the drawings before submitting to the department or be included in the report and identify as to how they are to be corrected. This report shall be attached to the plan(s) that were reviewed. We will retain the set with the original wet stamp;

     (4) A one-time initial filing fee and the design-plan fee (see WAC 296-150F-3000); and

     (5) A "key drawing" to show the arrangement of modules if the plan covers three or more modules.

     (6) Electrical plan review for educational, institutional or health care facilities and other buildings. Plan review is a part of the electrical inspection process; its primary purpose is to determine:

     (a) That loads and service/feeder conductors are calculated and sized according to the proper NEC or WAC article or section;

     (b) The classification of hazardous locations; and

     (c) The proper design of emergency and standby systems.

     (7) All electrical plans for new or altered electrical installations in educational, institutional, and health or personal care occupancies classified or defined in this chapter must be reviewed and approved before the electrical installation or alteration is started. Approved plans must be available for use during the electrical installation or alteration and for use by the electrical inspector.

     (8) All electrical plans for educational facilities, hospitals and nursing homes must be prepared by, or under the direction of, a consulting engineer registered under chapter 18.43 RCW in compliance with chapters 246-320((, 180-29,)) and 388-97 WAC as applicable and stamped with the engineer's mark and signature.

     (9) Plans to be reviewed by the department must be legible, identify the name and classification of the facility, clearly indicate the scope and nature of the installation and the person or firm responsible for the electrical plans. The plans must clearly show the electrical installation or alteration in floor plan view, include switchboard and/or panel board schedules and when a service or feeder is to be installed or altered, must include a riser diagram, load calculation, fault current calculation and interrupting rating of equipment. Where existing electrical systems are to supply additional loads, the plans must include documentation that proves adequate capacity and ratings. The plans must be submitted with a plan review submittal form available from the department.

[Statutory Authority: Chapter 43.22 RCW. 07-05-063, § 296-150F-0320, filed 2/20/07, effective 4/1/07; 05-23-002, § 296-150F-0320, filed 11/3/05, effective 12/4/05. Statutory Authority: RCW 43.22.340 and 43.22.480. 99-13-010, § 296-150F-0320, filed 6/4/99, effective 7/5/99. Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150F-0320, filed 10/23/96, effective 11/25/96.]


NEW SECTION
WAC 296-150F-0325   What are the requirements for temporary built structures?   Structures built for temporary built use must meet all the requirements of this chapter and installation for temporary installation.

[]


NEW SECTION
WAC 296-150F-0495   Contractor deposit accounts.   Manufacturers are required to open and maintain, for the purpose of inspection payments, a deposit account. Funds, for the purpose of inspections performed by the department, must be withdrawn from the account and all inspections paid in full prior to an insignia being placed on the manufactured unit.

[]


AMENDATORY SECTION(Amending WSR 96-21-146, filed 10/23/96, effective 11/25/96)

WAC 296-150F-0600   What manufacturing codes apply to factory-built housing and commercial structures?   (1) All design, construction, installations, and alterations of factory-built housing, commercial structures, and components must conform with the following codes and the requirements of this chapter:

     (a) The State Building Code, chapter 19.27 RCW;

Note: The ((Uniform)) International Building Code reference to "building official" means the chief prefabricated building specialist or authorized representative at the department of labor and industries.


     (b) The Energy Related Building Standards, chapter 19.27A RCW;

     (c) The National Electrical Code as referenced in chapter 19.28 RCW and chapter((s 296-46 and 296-401)) 296-46B WAC.

     (2) All construction methods and installations must use accepted engineering practices, provide minimum health and safety to the occupants of factory-built structures and the public, and demonstrate journeyperson quality of work of the various trades.

     (3) Requirements for any size, weight, or quality of material modified by the terms "minimum," "not less than," "at least," and similar expressions are minimum standards. The manufacturer may exceed these standards, provided the deviation does not result in inferior installation or defeat the purpose and intent of the standard.

Note: The codes, RCW's, and WAC's referenced in this rule are available for reference at the Washington State Library, the Washington State Law Library, and may be available at your local library.

[Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150F-0600, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 05-01-102, filed 12/14/04, effective 2/1/05)

WAC 296-150F-0605   May the required toilet facilities be located in an adjacent building?   Under the following conditions, the department will allow the required toilet facilities to be located in adjacent building(s):

     (1) The manufacturer shall note in the plan submittal that the requirements of IBC Chapter 29, Section ((2902)) 2902.1 and Section ((2902.1)) 2902.2, as amended by the state building code must be verified by the building official; and

     (2) A Notification to Local Enforcement Agency (NLEA) must accompany each unit so that the requirements of IBC Chapter 29, Section ((2902)) 2902.1 and Section ((2902.1)) 2902.2 as amended by the state building code can be verified by the building official.

[Statutory Authority: Chapter 43.22 RCW and 2003 c 291. 05-01-102, § 296-150F-0605, filed 12/14/04, effective 2/1/05. Statutory Authority: RCW 43.22.340 and 43.22.480. 99-13-010, § 296-150F-0605, filed 6/4/99, effective 7/5/99.]

OTS-3311.4


AMENDATORY SECTION(Amending WSR 96-21-146, filed 10/23/96, effective 11/25/96)

WAC 296-150M-0060   Who handles consumer complaints about manufactured homes?   The ((Washington state)) department ((of community, trade and economic development (CTED), office of manufactured housing section,)) handles consumer complaints about manufactured homes. ((CTED)) The department is the state administrative agency (SAA) for the United States Department of Housing and Urban Development for the federal manufactured home program. You can contact us at 1-800-647-0982.

[Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150M-0060, filed 10/23/96, effective 11/25/96.]


AMENDATORY SECTION(Amending WSR 08-12-041, filed 5/30/08, effective 6/30/08)

WAC 296-150M-0306   What codes are used when altering a manufactured/mobile home?   Alterations to a manufactured/mobile home must be in compliance with the Manufactured Home Construction and Safety Standards, 24 CFR Part 3280, as adopted by the Secretary for the Department of Housing and Urban Development (HUD) and the amendments to that federal standard adopted in this WAC chapter. The department will accept the following provisions, which supersede the applicable requirements in 24 CFR Part 3280.

     (1) Tested equivalent air conditioning/heat pump components that have been tested and listed for use with a particular furnace by a nationally recognized testing laboratory.


Note: For the installation of HVAC units in display homes located on dealer lots, a mechanical permit is not required until the home is located on-site. An electrical permit is required for the electrical circuit to the disconnect for the outdoor unit.

     (2) Water heaters that are listed by a nationally recognized testing laboratory and installed per the manufacturer's installation instructions.

     (3) Water heater pans are only required where the installation instructions are specific for warranty or the home was produced after June 2006. The pressure relief line must exit the skirting of the home as well as the drain line for any pan installed. The relief line and drain line are not to be interconnected.

     (4) Expansion tanks are not required by the department; check with the local jurisdiction for their requirements prior to installation of a water heater.



Note: For installation of electrical furnaces and/or water heater in pre-HUD homes, the requirement of 24 CFR Part 3280.203 for flame spread limitations is waived as long as the installation meets the requirement of the installed appliance for distance from combustibles.

     (((3))) (5) Pellet stoves for installation that have been listed by a department approved nationally recognized testing laboratory. For a current list of approved laboratories, contact any department field office or the department at the address shown in WAC 296-150M-0020.

     (((4))) (6) All electrical alterations and additions to the manufactured/mobile home shall comply with the current edition of the National Electrical Code.

     Electrical disconnects must be secured to a manufactured/mobile structural member (not the skirting) and have a 30" x 30" clearance for maintenance.

     (((5))) (7) Electrical connection requirement for additions and equipment.

     (a) Any circuit or feeder that is supplied from a pedestal or panel in an out building feeding the manufactured/mobile home requires a permit from the electrical section.

     (b) Any circuit or feeder that originates from the manufactured/mobile home's panel and feeds an addition that is structurally attached, or equipment that is structurally attached (i.e., heat pump or air conditioning unit) requires an FAS alteration permit.

     (c) Any circuit or feeder that originates in the manufactured/mobile home panel and feeds an unattached structure or equipment (i.e., hot tub, pool, well, septic system, yard lighting or generation equipment) requires two inspections. An FAS permit is required for the circuit or feeder from the panel and shall terminate in a J-box located under the home's exterior wall near the rim joist. A second permit is required from the electrical section from the J-box to the equipment or structure.

     (8) The International Residential Code for structural alterations.


Note: The replacement of exterior siding is an alteration and requires the approval of the department and an alteration insignia.

     (((6))) (9) The use of corrugated stainless steel tubing (CSST) is allowed when installed according to the manufactured installations instructions for mobile/manufactured homes by the following CSST manufacturers:

     (a) Gastite;

     (b) TracPipe;

     (c) Pro-Flex;

     (d) Wardflex.

     (((7))) (10) Installation of gas room heaters in bedrooms must:

     (a) Have direct vented (sealed combustion) and be listed as UL 307A for liquid fuel burning heater or ANSI Z21.88 and ANSI Z21.86 for vented gas fireplaces.

     (b) Not be able to draw combustion air from the living space and must be designed so that it will become inoperative if any door, latch, or opening is not properly sealed.

     (c) Have a smoke detector, listed to UL 217. The smoke detector can either be hardwired or battery powered and installed according to the manufacturer's installation requirements.

     (d) Have a carbon dioxide (CO2) detector, listed to UL 2034. The CO2 detector must be installed according to the manufacturer's installation requirements.

     (e) Have at least one means of egress.

[Statutory Authority: Chapter 43.22 RCW. 08-12-041, § 296-150M-0306, filed 5/30/08, effective 6/30/08; 07-05-063, § 296-150M-0306, filed 2/20/07, effective 4/1/07. Statutory Authority: Chapter 43.22 RCW and 2005 c 399. 05-24-020, § 296-150M-0306, filed 11/29/05, effective 1/1/06. Statutory Authority: RCW 43.22.340, 43.22.350, 43.22.355, 43.22.360, 43.22.400, 43.22.432, 43.22.433, 43.22.434, 43.22.450, 43.22.480, and 43.22.485. 00-17-148, § 296-150M-0306, filed 8/22/00, effective 9/30/00. Statutory Authority: RCW 43.22.340 and 43.22.480. 99-13-010, § 296-150M-0306, filed 6/4/99, effective 7/5/99. Statutory Authority: Chapter 43.22 RCW. 98-14-078, § 296-150M-0306, filed 6/30/98, effective 7/31/98.]


AMENDATORY SECTION(Amending WSR 08-12-041, filed 5/30/08, effective 6/30/08)

WAC 296-150M-0410   What are the requirements for altering mobile/manufactured homes?   (1) Roof over framing (dormer) additions to manufactured/mobile homes must meet the following requirements:

     (a) ((Maintain a minimum twenty pound roof, live load, and provide documentation to the department.

     (b) The dead load for the dormer must be the difference between the live load design of the roof and the roof design snow load of the manufactured/mobile home location (as per Snow Load Analysis for Washington, by Structural Engineers Association of Washington).

     (c) Existing roofing material, other than the sheathing, must be completely removed under the dormer.

     (d) An engineering analysis shall take into account the wind load on the structure, when the dormer extends above the original ridge line of the manufactured/mobile home.

     (e) The engineer or architect of record must clarify in writing on the original stamped drawings that the design plans may be used on other manufactured/mobile homes of the same live load, for generic designs that are to be used more than one time.

     (f) Submit all manufactured/mobile home alterations to the department to be reviewed by plan review for compliance.

     (2) Reroofing of a manufactured/mobile home must be installed and vented according to the manufacturer's installation instructions.

     (a) Existing asphalt roof will require removal of the original asphalt roofing material prior to the installation of new asphalt roofing.

     (b) If the original asphalt roofing material is not removed and a second layer of asphalt roofing is added, an engineering analysis must be completed to ensure that the existing roof structure can support the additional load while maintaining a 20 psf live roof load.

     (c) Metal roofing with or without insulation board applied after removing existing asphalt shingles must:

     (i) Follow the roofing manufacturer's installation requirements.

     (ii) Maintain minimum pitch of the roof as required by the roofing manufacturer's installation requirements.

     (d) Metal roofing with or without insulation board over an existing metal roof must:

     Allow the metal roof to be installed over another metal roof as required by the manufacturer's installation requirements.)) A manufactured/mobile home must maintain a minimum twenty pounds roof live load.

     (b) The difference between the live load design of the roof and the roof design snow load of the manufactured/mobile home location (as per Snow Load Analysis For Washington, by Structural Engineers Association of Washington) can be used as dead load for the roof over framing (dormer).

     (c) Existing roofing material other than the sheathing must be completely removed under the over framing (dormer).

     (d) For nonengineered design approved construction, documentation must be provided that the manufactured/mobile home has at least a thirty pounds roof live load.

     (e) Where the over framing (dormer) extends above the original ridge line of the manufactured home/mobile home, an engineering analysis shall take into account the wind load on the structure.

     (f) On generic designs that are to be used more than one time, the engineer or architect of record must clarify in writing on the original stamped drawings that the design plans may be used on other manufactured/mobile homes of the same make and live load.

     (g) Each manufactured/mobile home alteration will be reviewed by plan review for compliance.

     (2) The reroofing of a manufactured/mobile home requires an alteration permit be purchased and the replacement roof inspected. Reroofs are done in several ways and shall comply with the following as appropriate:

     (a) Most reroofs will be covered in the checklist "Alteration Re-Roofing Permit for Low Slope Roof Applications" which requires removal of the original asphalt roofing materials. See page 19-j-21.

     (b) Other types of reroofs will normally fall under one of the following:

     (c) Original asphalt roofing materials not removed and a second layer of asphalt roofing is to be applied.

     (i) On HUD labeled homes this will require an engineering analysis to assure that the existing roof structure can support the additional loads while maintaining the roof live load noted on the data plate.

     (ii) On pre-HUD homes this will require an engineering analysis to assure that the existing roof structure can support the additional loads while maintaining a 20 psf live roof load. A plan review is required.

     (d) Metal roofing with or without insulation board applied after removing existing asphalt roofing.

     (i) Installer must follow the roofing manufacturer's installation instructions.

     (ii) The metal roofing manufacturer's requirements for minimum pitch of the roof must be complied with.

     (iii) No plan review is required.

     (e) Applying metal roofing with or without insulation board over existing asphalt shingles. Five items must be complied with:

     (i) On HUD labeled homes this would require an engineering analysis to assure that the existing roof structure can support the additional loads while maintaining the roof live load noted on the data plate.

     (ii) On pre-HUD homes this will require an engineering analysis to assure that the existing roof structure can support the additional loads while maintaining a 20 psf live roof load.

     (A) A plan review is required.

     (B) The metal roofing manufacturer's installation instructions must allow the metal roof to be installed over asphalt shingles. Some metal roofing manufacturers will not allow their material to be installed over asphalt shingles;

     (C) The metal roofing manufacturer's requirements for minimum pitch of the roof must be complied with; and

     (D) All other installation instructions of the metal roofing manufacturer must be complied with.

     (f) Applying metal roofing with or without insulation board over an existing metal roof. Three items must be complied with:

     (i) The metal roofing manufacturer's installation instructions must allow the metal roof to be installed over another metal roof;

     (ii) The metal roofing manufacturer's requirements for minimum pitch of the roof must be complied with; and

     (iii) All other installation instructions of the metal roofing manufacturer must be complied with.

     (iv) No plan review is required.

     (3) Replacing floor decking must meet the following requirements:

     (a) Plan review is not required for the following:

     (i) The floor decking being replaced is not greater than forty-eight inches by ninety-six inches of each section of home.

     (ii) Two-by-six blocking is added to each floor joist and secured with 16d nails at six inches on center.

     (iii) Two-by-six blocking is added at the ends of the cut such that one-half is under the existing decking and one-half is under the decking being replaced and is secured with 16d nails, two at each joint (toe nailing is acceptable).

     (iv) Adding floor decking that is the same thickness and grade as originally installed.

     (v) Adding decking that is secured with construction adhesive bead and #8x1-3/4 inch screws at six inches on center.

     (b) Plan review is required, but engineering will not be required under the following condition:

     (i) The floor decking being replaced is greater than forty-eight inches by ninety-six inches.

     (ii) The decking being replaced is no more than fifty percent of the floor length, each section of home.

     (iii) The decking being replaced is no more than seventy-five percent of the floor width, each section of home.

     (c) If the floor decking being replaced is greater than ((forty-eight inches by ninety-six inches of each section of home)) above, then both plan review and engineering will be required.

     (d) On generic designs that are to be used more than once, an engineer or architect must clearly state in writing on the original stamped drawings that the design plans may be used on other manufactured/mobile homes of the same manufacturer.

     (4) Additions (i.e., rooms, garages, carports, etc.) added to manufactured/mobile homes.

     (a) Labor and industries factory assembled structures section is responsible for any alterations to the manufactured/mobile home. This includes:

     (i) Any opening that is added or changed.

     (ii) ((Electrical circuits added to the addition that come from the electrical panel in the manufactured/mobile home.

     (iii))) Using the manufactured/mobile home for support of the addition.

     (b) A plan review is required when adding an addition to a manufactured/mobile home for:

     (i) Openings not constructed per the ((department)) department's minimum header structural requirements detail.

     (ii) Manufactured/mobile homes which use the structure for support of the addition.

     (iii) Adding a dormer on the home.


Note: An engineer or architect licensed in Washington state must design the plans and seal the plans and calculations. The department's FAS plan review section will perform a plan review.

     (((c) Labor and industries electrical section is responsible for any electrical circuits added to the manufactured/mobile home that come from the pedestal where the electrical section has electrical inspection authority. Some cities have electrical inspection authority and would make those electrical inspections in their jurisdiction.

     (d))) (c) Local jurisdiction (city or county) is responsible for the inspection of the addition except as noted above.

     (((e))) (d) Items to pay particular attention to:

     (i) If the addition is being served by a required egress door:

     • The lock must be removed and nonlocking passage hardware installed or the door may be removed entirely leaving a passageway.

     • An exit door equal in size to the one removed must be installed in the addition.

     (ii) If the addition is being served by a 3rd door and the other doors meet the egress requirements outlined above, no changes to the exterior door are required.

     (iii) Electrical circuits run from the manufactured/mobile home electrical panel must:

     • Be in conduit if routed under the home; and

     • Terminate at the edge of the home in a junction box.

     (iv) The addition may be flashed to the manufactured/mobile home for purposes of sealing the exterior joint and may have trim installed on the interior for finishing.

     (5) Attaching awnings and carports and garages.

     (a) Self-supporting awnings and carports.

     When awnings and carports are self-supporting they may be flashed to the manufactured/mobile home and no permit is required from L&I FAS section. Please check with your local jurisdiction building department for any permits required by them.

     (b) Awnings and carports using the home for support.

     Aluminum or wood awnings and carports that use the manufactured/mobile home for support will need to:

     • Have the connections to the home designed and the additional load on the home analyzed by an engineer or architect licensed in Washington state. The engineer or architect will need to seal these designs and calculations;

     • The installer must submit the designs to the FAS plan review section for a review; and

     • The installer must have the installation inspected, after the plans are approved.

     (c) Manufactured home comes from factory garage ready.

     If the manufactured home comes from the factory garage ready, no inspection is required by L&I. Garage ready from the factory means:

     • Dormers, if required, are installed by the factory;

     • All gypsum board required on the home has been installed at the factory;

     • Any door between the home and the garage meets the requirements for separation of a residence from a garage as required by the building code;

     • All electrical installations meet the requirements of the National Electrical Code for one hour walls;

     • The dryer outlet termination has been designed at the factory to not exhaust into the garage; and

     • No other changes are required to the manufactured home at the installation site.


Note: If any changes are required to the manufactured home at the installation site, an alteration permit is required from the department.

     (d) Manufactured/mobile home is not garage ready.

     If the manufactured/mobile home is not garage ready when it leaves the factory, an alteration permit is required. Engineering analysis and plan review may also be required if additional loads are placed upon the home or openings are made or changed.

     The following are some examples of when a plan review would be required:

     • A dormer is added;

     • An opening in the home is made or changed (Note: Openings constructed to the department's approved details would not require a plan review); and

     • Gypsum board is added to the wall of the home.

     Items to also be aware of:

     When a garage is to be attached to a manufactured/mobile home, the following must also be considered:

     • The means of egress through exterior doors is not compromised (two are required);

     • The means of egress from the bedroom(s) is not compromised (one egress directly to the exterior from each); and/or endwalls are usually shearwalls and any additional openings in them will need an engineering analysis and plan review to substantiate.

     (6) Decertification of a manufactured/mobile home.

     (a) Can only be decertified if the jurisdiction having authority will allow the unit to remain on the property.

     (b) All electrical components, including the electrical panel, receptacles, switches and light must be removed and wires cut to where they enter the device.

     (c) All plumbing fixtures and exposed plumbing water, drain and waste lines must be cut off where they enter any wall, floor or ceiling.

     (d) All mechanical components including water heaters, furnaces, and kitchen appliances must be removed from the home.

     (7) Extensive bottom paper/bottom board that is damaged during transportation or is removed for any reason requires a structural alteration permit. The repair must include:

     (a) Replacement of the floor insulation to the equivalent R-value.

     (b) All potable water lines are insulated to a minimum R4.

     (c) Bottom board material shall be of material suitable for preventing the infestation of rodents (such as building wrap) and be suitable for patching. Plastic is not allowed for use as bottom board material.

     (d) All openings sealed to prevent rodents.

[Statutory Authority: Chapter 43.22 RCW. 08-12-041, § 296-150M-0410, filed 5/30/08, effective 6/30/08; 07-05-063, § 296-150M-0410, filed 2/20/07, effective 4/1/07.]

OTS-3312.1


AMENDATORY SECTION(Amending WSR 03-12-044, filed 5/30/03, effective 6/30/03)

WAC 296-150P-0020   What definitions apply to this chapter?   "Alteration" is the replacement, addition, modification, or removal of any equipment or material that affects the fire and life safety provisions, structural system, plumbing systems, fuel systems and equipment or electrical systems of a recreational park trailer.

     The following changes are not considered alterations for purposes of this chapter:

     • Repairs with approved parts;

     • Modification of a fuel-burning appliance according to the terms of its listing; and

     • Adjustment and maintenance of equipment.

     "Alteration insignia" is an insignia which indicates a recreational park trailer alteration was approved by the department.

     "ANSI" is the American National Standards Institute, Inc., and the institute's rules applicable to recreational park trailers. For the purposes of this chapter, references to ANSI mean ANSI A119.5 Recreational Park Trailers, ((1998)) current edition.

     "Approved" is approved by the department of labor and industries.

     "Audit" by the department is the department inspection of a manufacturer's quality control procedures, comprehensive plans, and recreational park trailers.

     "Comprehensive design plan" consists of the design plans and copies of drawings such as:

     • Floor plans relating to fire and life safety, structural, electrical, plumbing, liquefied petroleum (LP) and/or natural gas systems and appliances and air conditioning systems, if applicable to the plan of each recreational park trailer.

     • Plumbing line drawings which describe the size, length and location of gas piping lines, liquid and body waste lines, liquid and body waste tanks, and potable water tanks.

     • Electrical drawings. (See WAC 296-150P-0330.)

     "Consumer" is a person or organization who buys or leases recreational park trailers.

     "Dealer" is a person or organization whose business is offering recreational park trailers for sale or lease.

     "Department" is the department of labor and industries. The department may be referred to as "we" or "us" in this chapter. Note: You may contact us at: Department of Labor and Industries, Specialty Compliance, PO Box 44430, Olympia, WA 98504-4430.

     "Equipment" is all material, appliances, fixtures, and accessories used in the manufacture or alteration of recreational park trailers.

     "Manual" is a reference containing instructions, procedures, responsibilities and other information used to implement and maintain the quality control program of a recreational park trailer manufacturer.

     "National Electrical Code" see Appendix 'C' of ANSI A119.5 for reference to the appropriate edition to use for compliance.

     "Recreational park trailer" is a trailer-type unit that is primarily designed to provide temporary living quarters for recreational, camping or seasonal use, that meets the following criteria:

     • Built on a single chassis, mounted on wheels;

     • Having a gross trailer area not exceeding 400 square feet (37.15 square meters) in the set-up mode; and

     • Certified by the manufacturer as complying with ANSI A119.5.

     "Quality control" is the plan and method for ensuring that the manufacture, fabrication, assembly, installation, storing, handling, and use of materials complies with this chapter and ANSI.

     "State-plan insignia" is an insignia which is obtained under the state design-plan approval process.

     "System" is a part of a recreational park trailer that is designed to serve a particular function such as plumbing, electrical, heating, mechanical or structural system.

[Statutory Authority: RCW 43.22.340, 43.22.400, 43.22.432, 43.22.433, 43.22.434, 43.22.480, and 43.22.485, 2002 c 268, and chapter 43.22 RCW. 03-12-044, § 296-150P-0020, filed 5/30/03, effective 6/30/03. Statutory Authority: RCW 43.22.340 and 43.22.480. 99-13-010, § 296-150P-0020, filed 6/4/99, effective 7/5/99. Statutory Authority: RCW 43.22.340 and 43.22.420. 97-16-043, § 296-150P-0020, filed 7/31/97, effective 12/1/97.]

OTS-3313.1


AMENDATORY SECTION(Amending WSR 08-10-075, filed 5/6/08, effective 6/6/08)

WAC 296-150R-0020   What definitions apply to this chapter?   "Alteration" is the replacement, addition, modification, or removal of any equipment or material that affects the fire and life safety provisions, plumbing systems, fuel systems and equipment or electrical systems of a recreational vehicle.

     The following changes are not considered alterations for purposes of this chapter:

     • Repairs with approved parts;

     • Modification of a fuel burning appliance according to the terms of its listing; and

     • Adjustment and maintenance of equipment.

     "Alteration insignia" is an insignia which indicates a vehicle alteration was approved by the department.

     "ANSI" is the American National Standards Institute, Inc., and the institute's rules applicable to Low Voltage Systems in Conversion and Recreational Vehicles and Uniform Plan Approval for Recreational Vehicles. For the purposes of this chapter, references to ANSI mean ANSI/RVIA 12V Low Voltage Systems 2008 Edition and ANSI/RVIA UPA-1 Standard on Uniform Plan Approval for Recreational Vehicles 2003 Edition.

     "Approved" is approved by the department of labor and industries.

     "Audit" by the department can be either a comprehensive audit or a performance audit. A comprehensive audit is the department inspection of a manufacturer's quality control procedures, comprehensive plans, and vehicles. A performance audit is the department's review of the manufacturer's audit performed by the industry association or other independent auditor.

     "Comprehensive design plan" consists of the design plans and copies of drawings such as:

     • Floor plans relating to fire and life safety, electrical, plumbing, liquefied petroleum (LP) and/or natural gas systems and appliances and air conditioning systems, if applicable to the plan of each vehicle.

     • Plumbing line drawings which describe the size, length and location of gas piping lines, liquid and body waste lines, liquid and body waste tanks, and potable water tanks.

     • Electrical drawings. (See WAC 296-150R-0330 and 296-150R-0820.)

     "Consumer" is a person or organization who buys or leases recreational vehicles.

     "Dealer" is a person or organization whose business is offering recreational vehicles for sale or lease.

     "Department" is the department of labor and industries. The department may be referred to as "we" or "us" in this chapter. Note: You may contact us at: Department of Labor and Industries, Specialty Compliance, PO Box 44430, Olympia, WA 98504-4430.

     "Equipment" is all material, appliances, fixtures, and accessories used in the manufacture or alteration of recreational vehicles or park trailers.

     "Manual" is a reference containing instructions, procedures, responsibilities and other information used to implement and maintain the quality control program of a recreational vehicle manufacturer.

     "National Electrical Code" see Chapter 2 of NFPA 1192 Standard on Recreational Vehicles, 2008 Edition, for reference to the appropriate edition to use for compliance.

     "NFPA" is National Fire Protection Association, and the institute's rules applicable to recreation vehicles. For the purpose of this chapter, references to NFPA means NFPA 1192 Standard on Recreational Vehicles, 2008 Edition.

     "Quality control" is the plan and method for ensuring that the manufacture, fabrication, assembly, installation, storing, handling, and use of materials complies with this chapter, ANSI, and NFPA.

     "Recreational vehicle" is a vehicular type unit primarily designed as temporary living quarters for recreational camping, travel, or seasonal use that either has its own motive power or is mounted on, or towed by, another vehicle. Or travel use of such size or weight as not to require special highway movement permits when towed by a motorized vehicle and of gross area less than four hundred square feet. Recreational vehicles include: Camping trailers, fifth-wheel trailers, motor homes, travel trailers, and truck campers.

     "Self-certification insignia" is an insignia which is obtained under the self-certification approval process.

     "State-plan insignia" is an insignia which is obtained under the state design-plan approval process.

     "System" is a part of a recreational vehicle that is designed to serve a particular function such as plumbing, electrical, heating, or mechanical system.

     "Vehicle" for the purposes of this chapter, is a recreational vehicle.

[Statutory Authority: Chapter 43.22 RCW. 08-10-075, § 296-150R-0020, filed 5/6/08, effective 6/6/08. Statutory Authority: RCW 43.22.340, 43.22.400, 43.22.432, 43.22.433, 43.22.434, 43.22.480, and 43.22.485, 2002 c 268, and chapter 43.22 RCW. 03-12-044, § 296-150R-0020, filed 5/30/03, effective 6/30/03. Statutory Authority: RCW 43.22.340 and 43.22.480. 99-13-010, § 296-150R-0020, filed 6/4/99, effective 7/5/99. Statutory Authority: RCW 43.22.340 and 43.22.420. 97-16-043, § 296-150R-0020, filed 7/31/97, effective 12/1/97. Statutory Authority: RCW 43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. 96-21-146, § 296-150R-0020, filed 10/23/96, effective 11/25/96.]

OTS-3314.3


AMENDATORY SECTION(Amending WSR 99-12-079, filed 5/28/99, effective 6/28/99)

WAC 296-150T-0200   Who must purchase factory-built temporary worker housing insignia?   (1) You must obtain insignia from us for each factory-built temporary worker ((hosing)) housing unit sited in Washington state.

     (2) You must have an approved design plan and have passed inspection before an insignia can be attached to your factory-built temporary worker housing structure by us or our authorized agent.

     (3) If a unit is damaged in transit after leaving the manufacturing location or during an on-site installation, and a repair is necessary, you must purchase a new insignia from us. The new insignia indicates that the unit was repaired.

[Statutory Authority: RCW 43.22.480. 99-12-079, § 296-150T-0200, filed 5/28/99, effective 6/28/99.]


NEW SECTION
WAC 296-150T-0495   Contractor deposit accounts.   Manufacturers are required to open and maintain, for the purpose of inspection payments, a deposit account. Funds, for the purpose of inspections performed by the department, must be withdrawn from the account and all inspections paid in full prior to an insignia being placed on the manufactured unit.

[]


AMENDATORY SECTION(Amending WSR 99-12-079, filed 5/28/99, effective 6/28/99)

WAC 296-150T-0600   What manufacturing codes apply to factory-built temporary worker housing?   (1) All design, construction, installations, and alterations of factory-built temporary worker housing structures must conform with the following codes and the requirements of this chapter:

     (a) The temporary worker housing construction code, chapter 246-359 WAC;

     (b) The National Electrical Code as referenced in chapter 19.28 RCW and in chapter ((296-46)) 296-46B WAC.

     (2) All construction methods and installations must comply with chapter 246-359 WAC and use accepted engineering practices when used, provide minimum health and safety to the occupants of factory-built temporary worker housing structures and the public, and demonstrate journeyperson quality of work of the various trades.

     (3) Requirements for any size, weight, or quality of material modified by the terms "minimum," "not less than," "at least," and similar expressions are minimum standards. The manufacturer may exceed these standards, provided the deviation does not result in inferior installation or defeat the purpose and intent of the standard.

Note: The codes, RCWs, and WACs referenced in this rule are available for reference at the Washington State Library, the Washington State Law Library, and may be available at your local library.

[Statutory Authority: RCW 43.22.480. 99-12-079, § 296-150T-0600, filed 5/28/99, effective 6/28/99.]

OTS-3315.5


NEW SECTION
WAC 296-150V-0495   Contractor deposit accounts.   Manufacturers are required to open and maintain, for the purpose of inspection payments, a deposit account. Funds, for the purpose of inspections performed by the department, must be withdrawn from the account and all inspections paid in full prior to an insignia being placed on the manufactured unit.

[]


AMENDATORY SECTION(Amending WSR 03-12-044, filed 5/30/03, effective 6/30/03)

WAC 296-150V-0800   What codes apply to conversion vendor units or medical units?   (1) A conversion vendor unit or medical unit must comply with the following codes where applicable:

     (a) The ((Uniform)) current edition of the International Mechanical Code, with the amendments made by the Washington State Building Code Council, chapter ((51-42)) 51-52 WAC.

     (b)(i) For conversion vending/medical units Article 551, Parts I through VI of National Electrical Code/National Fire Protection Agency (NFPA) 70, ((2002)) current edition or Article 552, Parts I through V Article of National Electrical Code/National Fire Protection Agency (NFPA) 70, ((2002)) current edition.

     (ii) For medical units the National Electrical Code (NFPA 70, current edition) as referenced in ((chapter 19.28 RCW)) Article 517 for Patient Care Areas and chapter ((296-46A)) 296-46B WAC((, installing electric wires and equipment)).

     (c) Chapter 7 of ((American National Standards Institute (ANSI) A119.2, 2002)) the National Fire Protection Association (NFPA 1192), current edition or the Uniform Plumbing Code as adopted and amended according to chapter 19.27 RCW.

     (d) The Washington State Building Code Council, chapter ((51-40)) 51-50 WAC, ((Uniform)) International Building Code, Chapter 11, Accessibility as applies to the exterior of the unit relating to customer service facilities in section 1105.4.7.

     (((e) The Washington State Energy Code, as adopted according to chapter 19.27A RCW, and the Washington State Ventilation and Indoor Air Quality Code, chapter 51-13 WAC, when heating and/or air conditioning is installed.))

     (2) Provide minimum health and safety to the occupants of conversion vendor units and medical units and the public, and demonstrate journeyman quality of work of the various trades.

     (3) Requirements for any size, weight, or quality of material modified by the terms "minimum," "not less than," "at least," and similar expressions are minimum standards. The conversion vendor unit or medical unit may exceed these rules provided the deviation does not result in inferior installation or defeat the purpose and intent of this chapter.


Exception: Sign circuits required by Article 600 of the National Electrical Code will not be required.

[Statutory Authority: RCW 43.22.340, 43.22.400, 43.22.432, 43.22.433, 43.22.434, 43.22.480, and 43.22.485, 2002 c 268, and chapter 43.22 RCW. 03-12-044, § 296-150V-0800, filed 5/30/03, effective 6/30/03. Statutory Authority: RCW 43.22.350, 43.22.434, 43.22.480, 43.22.500, 18.27.040, 18.27.070, 18.27.075, 70.87.030, 19.28.041, 19.28.051, 19.28.101, 19.28.121, 19.28.161, 19.28.201, 19.28.211, 19.28.341, 2001 c 7, 2002 c 249, and chapters 19.28, 43.22, 18.27, and 70.87 RCW. 02-12-022, § 296-150V-0800, filed 5/28/02, effective 6/28/02. Statutory Authority: Chapter 43.22 RCW. 99-18-069, § 296-150V-0800, filed 8/31/99, effective 10/1/99.]


AMENDATORY SECTION(Amending WSR 05-01-102, filed 12/14/04, effective 2/1/05)

WAC 296-150V-1180   What requirements apply to conversion vendor unit exits ((on all units approved after December 31, 1999))?   At least one conversion vending unit exit or medical unit exit must meet the following requirements:

     (1) Exterior doors must be constructed for exterior use.

     (2) The exterior door must be at least a twenty-eight inch wide clear opening by seventy-two inches high.

     (3) Locks must be operable from the interior of the unit without use of a key.

     (4) Exit doors may either be hinged or sliding. Roll-up doors may not be used to meet the requirements of this section.

     (5) Existing units with doors less than twenty-eight inches in width must have a second means of exit. The second means of exit for converted units shall be twenty-four inches by seventeen inches, and for newly built units exits must be a minimum of five square feet of openable area.

     (6) Pass-through windows shall be safety glazed based on the IBC Section 2406.1.


Exception: When there are employees, a minimum of twenty-eight inches clear opening must be provided.

[Statutory Authority: Chapter 43.22 RCW and 2003 c 291. 05-01-102, § 296-150V-1180, filed 12/14/04, effective 2/1/05. Statutory Authority: RCW 43.22.340, 43.22.350, 43.22.355, 43.22.360, 43.22.400, 43.22.432, 43.22.433, 43.22.434, 43.22.450, 43.22.480, and 43.22.485. 00-17-148, § 296-150V-1180, filed 8/22/00, effective 9/30/00. Statutory Authority: Chapter 43.22 RCW. 99-18-069, § 296-150V-1180, filed 8/31/99, effective 10/1/99.]


AMENDATORY SECTION(Amending WSR 99-18-069, filed 8/31/99, effective 10/1/99)

WAC 296-150V-1185   What exit door requirements apply to self-propelled medical unit exits?   Exit door(s) on self-propelled medical units must meet the following requirements:

     (1) Exterior doors must be constructed for exterior use.

     (2) The exterior door must be at least a twenty-eight inches wide clear opening by seventy-two inches high.

     (3) Locks must be operable from the interior of the unit without use of a key.

     (4) Exit doors may either be hinged or sliding. Roll-up doors may not be used to meet the requirements of this section.

     (5) ((Units over twenty-four feet in length must have a minimum of two exit doors.)) Exit doors where the threshold of the door is more than fourteen inches above the adjacent grade or road surface must have landings, stairs, handrail, and guardrails meeting the requirements of IBC chapter 10 as referenced in chapter 51-50 WAC.

[Statutory Authority: Chapter 43.22 RCW. 99-18-069, § 296-150V-1185, filed 8/31/99, effective 10/1/99.]


AMENDATORY SECTION(Amending WSR 99-18-069, filed 8/31/99, effective 10/1/99)

WAC 296-150V-1330   What are the mechanical requirements for a conversion vendor unit or medical unit?   When mechanical and ventilation equipment is installed in or on a conversion vendor unit or medical unit, it must be installed according to the requirements of the ((Uniform)) International Mechanical Code, and to the conditions of the equipment approval or listing.

[Statutory Authority: Chapter 43.22 RCW. 99-18-069, § 296-150V-1330, filed 8/31/99, effective 10/1/99.]

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