Washington Administrative Code
2023 Archive

Chapter 51-52 WAC
Last Update: 11/15/23

STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2021 EDITION OF THE INTERNATIONAL MECHANICAL CODE
(Formerly chapter 51-42 WAC)
PDF of Chapter Digest
WAC Sections
51-52-001Authority.
51-52-002Purpose.
51-52-003International Mechanical Code.
51-52-004Conflict between International Mechanical Code and State Energy Code chapter 51-11C WAC.
51-52-005Reserved.
51-52-007Exceptions.
51-52-008Implementation.
51-52-0101Section 101—General.
51-52-0102Section 102—Applicability.
51-52-0113Section 113—Stop work order.
51-52-0202Section 202—General definitions.
51-52-0301Section 301—Reserved.
51-52-0306Section 306—Access and service space.
51-52-0307Section 307—Condensate disposal.
51-52-0401Section 401—General.
51-52-0403Section 403—Mechanical ventilation.
51-52-0404Section 404—Enclosed parking garages and automobile repair facilities.
51-52-0407Section 407—Ambulatory care facilities and Group I-2 occupancies.
51-52-0501Section 501—General.
51-52-0504Section 504—Clothes dryer exhaust.
51-52-0505Section 505—Domestic cooking exhaust equipment.
51-52-0506Section 506—Commercial kitchen hood ventilation system ducts and exhaust equipment.
51-52-0507Section 507—Commercial kitchen hoods.
51-52-0515Section 515—Waste or linen chute venting.
51-52-0601Section 601—General.
51-52-0602Section 602—Plenums.
51-52-0603Section 603—Duct construction and installation.
51-52-0605Section 605—Air filters.
51-52-0606Section 606—Smoke detection systems control.
51-52-0607Section 607—Ducts and transfer openings.
51-52-0915Section 915—Engine and gas turbine-powered equipment and appliances.
51-52-0928Reserved.
51-52-1000Chapter 10—Boilers, water heaters and pressure vessels.
51-52-1101Reserved.
51-52-1105Reserved.
51-52-1106Section 1106—Machinery room, special requirements.
51-52-1107Section 1107—Reserved.
51-52-1200Chapter 12—Hydronic piping.
51-52-1305Section 1305—Fuel oil system installation.
51-52-1400Reserved.
51-52-1500Chapter 15—Referenced standards.
51-52-21000International Fuel Gas Code.
51-52-21101Section 101 (IFGC)—General.
51-52-21116Section 116 (IFGC)—Stop work order.
51-52-21401Reserved.
51-52-21409Section 409 (IFGC)—Shutoff valves.
51-52-21601Reserved.
51-52-21800Chapter 8—Referenced standards.
51-52-22000National Fuel Gas Code.
51-52-22006Reserved.
DISPOSITION OF SECTIONS FORMERLY CODIFIED IN THIS TITLE
51-52-21404Section 404—Piping system installation. [Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 04-01-104, § 51-52-21404, filed 12/17/03, effective 7/1/04.] Repealed by WSR 07-01-092, filed 12/19/06, effective 7/1/07. Statutory Authority: RCW 19.27.190, 19.27.020, and chapters 19.27 and 34.05 RCW.