51-51-0331	Subsection R331.1	Smoke alarms and heat detectors shall be installed in accordance with the requirements of new construction per IRCSection R314. Provide an additional.In addition to the required smoke alarms, a heat detectoralarm shall be provided in each kitchen.	Changes in this section are editorial and intended to clarify the code language. In the event of fire, occupant notification will be faster than out of date systems. The addition of kitchen heat detectors adds an additional location of detection.
	New Subsection 331.2.1	R331.2.1 Illumination in the event of power failure. In addition to illumination requirements of Section R311.7.9, provide an artificial light source that activates upon termination of building power supply shall be installed at all interior stairs serving child care areas.	This section requires additional emergency lighting when there are more than 12 children receiving care in a "family home child care."
	New Subsection 331.3 (Option 1)	(OPTION 1) R331.3 Sprinklers. An automatic residential sprinkler system shall be designed and installed in accordance with Section P2904 or NFPA 13D.	This first option would require a P2904 or NFPA 13D sprinkler system for "family home child care" when more than 12 children receive care. This option was not adopted.
	New Subsection 331.3 (Option 2)	(OPTION 2) R331.3 Sprinklers. An automatic residential sprinkler system shall be designed and installed in accordance with Section P2904 or NFPA 13D. Exception: Subject to approval of the code official, a sprinkler system is not required where all of the following conditions are met: 1. Child care areas are located on a floor within 4 feet of grade level; and 2. Each room used for child care area shall have a door compliant with Section R311.2 and R311.3, leading directly to the exterior of the building. The exterior landing at the door shall comply with Section R311.3 but need not comply with Section R311.3.1.	This second option would require a P2904 or NFPA 13D sprinkler system for "family home child care" when more than 12 children receive care. It also allows for an exception to the sprinkler requirement based on code official approval, exiting door requirements, and proximity to grade requirements. This option was adopted instead of option one with editorial changes. The changes are intended to clarify the language of this section. Editorial changes were made to clarify code language of this section.

ADULT FAMILY HOME. A dwelling, licensed by the state of Washington department of social and health services, in which a person or persons provide personal care, special care, room and board to more than one but not more than six adults who are not related by blood or marriage to the person or persons providing the services. An existing adult family home may provide services to up to eight adults upon approval from the department of social and health services in accordance with RCW 70.128.066.

BUILDING. Any one- or two-family dwelling or townhouse, or portion thereof used or intended to be used for human habitation, for living, sleeping, cooking or eating purposes, or any combination thereof, or any accessory structure.

BUILDING, EXISTING. A building or structure erected prior to the adoption of this code, or one that has passed a final inspection.

CHILD CARE, FAMILY HOME. A child care facility, licensed by Washington state, located in the dwelling of the person or persons under whose direct care and supervision the child is placed, for the care of ((twelve))sixteen or fewer children, including children who reside at the home.

CHILD DAY CARE, shall, for the purposes of these regulations, mean the care of children during any period of a 24 hour day.

CONDITIONED SPACE. An area, room or space that is enclosed within the building thermal envelope and that is directly or indirectly heated or cooled. Spaces are indirectly heated or cooled where they communicate through openings with conditioned spaces, where they are separated from conditioned spaces by uninsulated walls, floors or ceilings, or where they contain uninsulated ducts, piping or other sources of heating or cooling.

DISTRIBUTED WHOLE-HOUSE VENTILATION. A whole-house ventilation system shall be considered distributed when it supplies outdoor air directly (not transfer air) to each dwelling or sleeping unit habitable space (living room, den, office, interior adjoining spaces or bedroom), and exhausts air from all kitchens and bathrooms directly outside.

DWELLING UNIT. A single unit providing complete independent living facilities for one or more persons, including permanent provisions for living, sleeping, eating, cooking and sanitation. Dwelling units may also include the following uses:

1. Adult family homes, foster family care homes and family day care homes licensed by the Washington state department of social and health services.

2. Offices, mercantile, food preparation for off-site consumption, personal care salons or similar uses which are conducted primarily by the occupants of the dwelling unit and are secondary to the use of the unit for dwelling purposes, and which do not exceed 500 square feet (46.4 m2).

EGRESS ROOF ACCESS WINDOW. A skylight or roof window designed and installed to satisfy the Emergency Escape and Rescue Opening requirements of Section R310.2.

ENCLOSED KITCHEN. A kitchen whose permanent openings to interior adjacent spaces do not exceed a total of 60 square feet (6 m2).

FIRE SEPARATION DISTANCE. The distance measured from the foundation wall or face of the wall framing, whichever is closer, to one of the following:

1. To the closest interior lot line; or

2. To the centerline of a street, an alley or public way; or

3. To an imaginary line between two buildings on the lot.

The distance shall be measured at a right angle from the wall.

FLOOR AREA. The area within the inside perimeter of exterior walls of the building. The floor area of a building, or portion thereof, not provided with surrounding exterior walls shall be the usable area under the horizontal projection of the roof or floor above.

LANDING PLATFORM. A landing provided as the top step of a stairway accessing a Loft.

LOCAL EXHAUST. An exhaust system that uses one or more fans to exhaust air from a specific room or rooms within a residential dwelling or sleeping unit.

LOFT. A space on an intermediate level or levels between the floor and ceiling of a dwelling or sleeping unit, open on one or more sides to the room or space in which the loft is located, and in accordance with Section R333.

LOT LINE. The line which bounds a plot of ground described as a lot in the title to the property.

SALT WATER COASTAL AREA. Those areas designated as salt water coastal areas by the local jurisdiction.

SMALL BUSINESS. Any business entity (including a sole proprietorship, corporation, partnership or other legal entity) which is owned and operated independently from all other businesses, which has the purpose of making a profit, and which has fifty or fewer employees.

TOWNHOUSE UNIT. A single-family dwelling unit in a townhouse that extends from foundation to roof and that has a yard or public way on not less than two sides that extends at least 50 percent of the length of each of these two sides.

R331.1 Family home child care. For family home child care with more than six children, each floor level used for family child care purposes shall be served by two remote means of egress. Exterior exit doors shall be operable from the inside without the use of keys or any special knowledge or effort.

Basements located more than 4 feet below grade level shall not be used for family home child care unless one of following conditions exist:

1. Stairways from the basement open directly to the exterior of the building without entering the first floor;

2. One of the two required means of egress discharges directly to the exterior from the basement level, and a self-closing door is installed at the top or bottom of the interior stair leading to the floor above;

3. One of the two required means of egress is an operable window or door, approved for emergency escape or rescue, that opens directly to a public street, public alley, yard or exit court; or

4. ((A residential sprinkler system is provided throughout the entire building in accordance with NFPA 13d.))An automatic residential sprinkler system shall be designed and installed in accordance with Section P2904 or NFPA 13D.

Floors located more than 4 feet above grade level shall not be occupied by children in family home child care.

EXCEPTIONS:	1. Use of toilet facilities while under supervision of an adult staff person;
	2. Family home child care may be allowed on the second story if one of the following conditions exists:
	2.1. Stairways from the second story open directly to the exterior of the building without entering the first floor;
	2.2. One of the two required means of egress discharges directly to the exterior from the second story level, and a self-closing door is installed at the top or bottom of the interior stair leading to the floor below; or
	2.3. ((A residential sprinkler system is provided throughout the entire building in accordance with NFPA 13d.))An automatic residential sprinkler system shall be designed and installed in accordance with Section P2904 or NFPA 13D.

Every sleeping or napping room in a family home child care shall have at least one operable window for emergency rescue.

EXCEPTION:

Sleeping or napping rooms having doors leading to two separate means of egress, or a door leading directly to the exterior of the building.

Rooms or spaces containing a commercial-type cooking kitchen, boiler, maintenance shop, janitor closet, laundry, woodworking shop, flammable or combustible storage, or painting operation shall be separated from the family home child care area by at least 1-hour ((fire-resistive))fire-resistant construction.

EXCEPTION:

A ((fire-resistive))fire-resistant separation shall not be required where the food preparation kitchen contains only a domestic cooking range, and the preparation of food does not result in the production of smoke or grease laden vapors.

Smoke alarms shall be installed in accordance with the requirements of new construction per Section R314. In addition to the required smoke alarms, a heat alarm shall be provided in each kitchen.

R331.2 Additional requirements for family home child care with thirteen to sixteen children. In addition to the requirements of Section 331.1 the provisions of this section shall apply to family home child care with thirteen to sixteen children.

R331.2.1 Illumination in the event of power failure. In addition to illumination requirements of Section R311.7.9, an artificial light source that activates upon termination of building power supply shall be installed at all interior stairs serving child care areas.

R331.2.2 Exterior exit doors serving child care areas. Exterior exit doors serving child care areas shall comply with the requirements of Sections R311.2 and R311.3.

R331.3 Sprinklers. An automatic residential sprinkler system shall be designed and installed in accordance with Section P2904 or NFPA 13D.

EXCEPTION:	Subject to approval of the code official, a sprinkler system is not required where all of the following conditions are met:
	1. Child care areas are located on a floor within 4 feet of grade level;
	2. Each room used for child care shall have a door compliant with Section R311.2 and R311.3, leading directly to the exterior of the building. The exterior landing at the door shall comply with Section R311.3 but need not comply with Section R311.3.1.