Washington Administrative Code

InformationalNote:Boilers and pressure vessels are regulated by chapter 70.79 RCW and chapter 296-104 WAC in addition to the requirements of this code.1001.1 Scope. This chapter shall govern the installation, alteration and repair of boilers, water heaters and pressure vessels.EX…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-02-055, 23-12-106, and 23-20-025, § 51-52-1101, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24. Statutory Authority: RCW 19.27.031, 19.27.074, and chapter 19.27 RCW. WSR 22-09-009, § 51-52-1101, filed 4/8/22, effecti…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-02-055, 23-12-106, and 23-20-025, § 51-52-1105, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24; WSR 20-03-041, § 51-52-1105, filed 1/8/20, effective 7/1/20.]

1106.4.2 Emergency ventilation system. An emergency ventilation system shall be provided at the minimum exhaust rate specified in ASHRAE 15 or Table 1106.4.2. Shutdown of the emergency ventilation system shall be by manual means.Table 1106.4.2MINIMUM EXHAUST RATESRefrigerantQ(m/s…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 20-03-041, § 51-52-1107, filed 1/8/20, effective 7/1/20; WSR 16-01-148, § 51-52-1107, filed 12/21/15, effective 7/1/16.]

1209.5 Insulation and thermal break required. Radiant floor heating and snow melt systems shall be provided with insulation and a thermal break in accordance with Sections 1209.5.1 and 1209.5.2. Concrete slab-on-grade, asphalt and paver-system type pavements shall have a minimum …

1305.7 Vent piping. Liquid fuel vent pipes shall terminate outside of buildings at a point not less than 5 feet (1524 mm) from building openings and not less than 15 feet (4572 mm) from outdoor air intakes. Outer ends of vent pipes shall terminate in a weatherproof vent cap or fi…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-02-055, 23-12-106, and 23-20-025, § 51-52-1400, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24; WSR 20-03-041, § 51-52-1400, filed 1/8/20, effective 7/1/20.]

The following referenced standards are added to Chapter 15.AHAMAssociation of Home Appliance Manufacturers1111 19th St. N.W., #402Washington D.C. 20036AHAM-Certified Range HoodDirectory. . . .403.4.7.3.1HRH-2 Household Range Hoods . . . .403.4.7.3.1ANCEUL/CSA/ANCE 60335-2-40—2019…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 04-01-104, § 51-52-21000, filed 12/17/03, effective 7/1/04.]

101.2 Scope. This code shall apply to the installation of fuel gas piping systems, fuel gas utilization equipment, gaseous hydrogen systems and regulated accessories in accordance with Section 101.2.1 through 101.2.5.EXCEPTIONS:1. Detached one- and two-family dwellings and multip…

116.4 Failure to comply. Any person who shall continue any work after having been served with a stop work order, except such work as that person is directed to perform to remove a violation or unsafe condition, shall be subject to fines established by the code official.[Statutory…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 20-03-041, § 51-52-21401, filed 1/8/20, effective 7/1/20; WSR 16-01-148, § 51-52-21401, filed 12/21/15, effective 7/1/16. Statutory Authority: RCW 19.27.031, 19.27.074 and chapters 19.27 and 34.05 RCW. WSR 13-04-053, § 51-52-…

Table 409.1.1Natural Gas Valve StandardsValve StandardsAppliance Shutoff Valve ApplicationUp to 1/2 psig PressureOther Valve ApplicationsUp to 1/2 psig PressureUp to 2 psig PressureUp to 5 psig PressureUp to 125 psig PressureANSI Z21.15/CGA 9.1X--------ASME B16.44XXXaXb--ASME B16…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 20-03-041, § 51-52-21601, filed 1/8/20, effective 7/1/20; WSR 16-01-148, § 51-52-21601, filed 12/21/15, effective 7/1/16. Statutory Authority: RCW 19.27.031, 19.27.074 and chapters 19.27 and 34.05 RCW. WSR 13-04-053, § 51-52-…

The following referenced standards are added to Chapter 8.ASMEB16.38-2012(R2017): Large Metallic Valves for Gas Distribution: Manually Operated, NPS 2 1/2 (DN 65) to NPS 12 (DN 300), 125 psig (8.6 bar) Maximum. . . .Table 409.1.1[Statutory Authority: RCW 19.27.031 and 19.27.074. …

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 04-01-104, § 51-52-22000, filed 12/17/03, effective 7/1/04.]

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 20-03-041, § 51-52-22006, filed 1/8/20, effective 7/1/20. Statutory Authority: RCW 19.27.190, 19.27.020, and chapters 19.27 and 34.05 RCW. WSR 07-01-092, § 51-52-22006, filed 12/19/06, effective 7/1/07. Statutory Authority: R…

These rules are adopted under the authority of chapter 19.27 RCW.[Statutory Authority: RCW 19.27A.031, 19.27.074 and chapters 19.27 and 34.05 RCW. WSR 13-04-063, § 51-54A-001, filed 2/1/13, effective 7/1/13.]

The purpose of these rules is to implement the provisions of chapter 19.27 RCW, which provides that the State Building Code Council shall maintain the State Building Code in a status which is consistent with the purpose as set forth in RCW 19.27.020. In maintaining the codes the …

The 2021 edition of the International Fire Code, published by the International Code Council is hereby adopted by reference with the following additions, deletions, and exceptions.[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 22-13-093, 23-12-107, and 23-20-027, § 51-54A…

The exceptions and amendments to the International Fire Code contained in the provisions of chapter 19.27 RCW shall apply in case of conflict with any of the provisions of these rules.Codes referenced which are not adopted through RCW 19.27.031 or chapter 19.27A RCW shall not app…

The International Fire Code adopted by chapter 51-54A WAC shall become effective in all counties and cities of this state on March 15, 2024.[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-23-106, § 51-54A-008, filed 11/15/23, effective 3/16/24; WSR 22-13-093, 23-12-107,…

Reserved.[Statutory Authority: RCW 19.27.035 and 19.27.074. WSR 21-02-059, § 51-54A-0101, filed 1/4/21, effective 2/4/21. Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 20-01-162, § 51-54A-0101, filed 12/18/19, effective 7/1/20; WSR 16-05-065, § 51-54A-0101, filed 2/12/16,…

105.5.14.1 Lithium batteries. An operational permit is required for an accumulation of more than 15 cubic feet (0.42 m) of lithium-ion and lithium metal batteries, where required by Section 322.1.105.5.32 Mobile food preparation vehicles. A permit is required for mobile preparati…

SECTION 202 GENERAL DEFINITIONSADULT 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 r…

301.2 Permits. Permits shall be required as set forth in Section 105.5 for the activities or uses regulated by Sections 306, 307, 308, 315, 320, and 322.[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 22-13-093, 23-12-107, and 23-20-027, § 51-54A-0301, filed 6/14/22, 6/7/2…

302.1 Definitions. The following terms are defined in Chapter 2:3D PRINTER;ADDITIVE MANUFACTURING;BONFIRE;HI-BOY;HIGH-VOLTAGE TRANSMISSION LINE;MOBILE FOOD PREPARATION VEHICLE;OPEN BURNING;PORTABLE OUTDOOR FIREPLACE;POWERED INDUSTRIAL TRUCK;RECREATIONAL FIRE;SKY LANTERN.[Statutor…

307.2.1 Authorization. Where required by state or local law or regulations, open burning shall only be permitted with prior approval from the state or local air and water quality management authority, provided that all conditions specified in the authorization are followed. See a…

308.1.4 Open-flame cooking devices. This section is not adopted.308.1.7 Religious ceremonies. Participants in religious ceremonies shall not be precluded from carrying hand-held candles. See RCW 19.27.031(3).308.1.7.1 Aisles and exits. Candles shall be prohibited in areas where o…

314.4 Vehicles. Liquid- or gas-fueled vehicles, boats, aircraft or other motorcraft shall not be located indoors except as follows:1. The engine starting system is made inoperable or ignition batteries are disconnected except where the fire code official requires that the batteri…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 22-13-093, 23-12-107, and 23-20-027, § 51-54A-0315, filed 6/14/22, 6/7/23, and 9/25/23, effective 3/15/24; WSR 19-24-058, § 51-54A-0315, filed 11/27/19, effective 7/1/20.]

319.1 General. Mobile food preparation vehicles that are equipped with appliances that produce smoke or grease-laden vapors or utilize LP-gas systems or CNG systems shall comply with this section.[Statutory Authority: RCW 19.27.035 and 19.27.074. WSR 21-02-059, § 51-54A-0319, fil…

321.1 Artificial combustible vegetation on roofs and near buildings. Artificial combustible vegetation exceeding 6 feet (1829 mm) in height and permanently installed outdoors within 5 feet (1524 mm) of a building or on the roof of a building shall comply with Section 807.4.1. The…

322.1 General. The storage of lithium-ion and lithium metal batteries shall comply with Section 322.EXCEPTIONS:1. New or refurbished batteries installed in the equipment, devices, or vehicles they are designed to power. 2. New or refurbished batteries packed for use with the equi…

323.1 General. Lithium-ion and lithium metal battery powered micromobility devices and powered industrial trucks shall be operated and maintained in accordance with this section.EXCEPTIONS:1. Storage, repair and charging in residential occupancies of powered mobility devices, pro…

401.2 Approval. Where required by the fire code official, fire safety plans, emergency procedures and employee training programs shall be approved by the fire official.[Statutory Authority: RCW 19.27.035 and 19.27.074. WSR 21-02-059, § 51-54A-0401, filed 1/4/21, effective 2/4/21.…

The following terms are defined in Chapter 2:ALARM SIGNAL;ALERT SIGNAL;ALERT SYSTEM;EMERGENCY EVACUATION DRILL;LOCKDOWN;SHELTER-IN-PLACE;RECALL SIGNAL.[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 22-13-093, 23-12-107, and 23-20-027, § 51-54A-0402, filed 6/14/22, 6/7/23,…

403.4.3 Assembly points and fire operations. Assembly points shall not be in areas likely to be utilized for fire service operations.403.9.2 Group R-2 occupancies. Group R-2 occupancies shall comply with Sections 403.9.2.1 through 403.9.2.4.403.9.2.4 Group R-2 assisted living and…

404.2.3 Lockdown plans. This section is not adopted.[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 16-03-055, § 51-54A-0404, filed 1/16/16, effective 7/1/16. Statutory Authority: RCW 19.27A.031, 19.27.074 and chapters 19.27 and 34.05 RCW. WSR 13-04-063, § 51-54A-0404, fil…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 20-01-162, § 51-54A-0405, filed 12/18/19, effective 7/1/20. Statutory Authority: Chapter 19.27 RCW and RCW 19.27.031. WSR 17-10-028, § 51-54A-0405, filed 4/25/17, effective 5/26/17. Statutory Authority: RCW 19.27.031 and 19.2…

406.1 General. Employees in the occupancies listed in Section 403 shall be trained in the emergency procedures described in their emergency plans. Training shall be based on these plans and as described in Sections 406.2 through 406.3.5.406.2 Frequency. Employees shall receive tr…

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 16-03-055, § 51-54A-0408, filed 1/16/16, effective 7/1/16. Statutory Authority: RCW 19.27A.031, 19.27.074 and chapters 19.27 and 34.05 RCW. WSR 13-04-063, § 51-54A-0408, filed 2/1/13, effective 7/1/13.]

[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-23-106, § 51-54A-0501, filed 11/15/23, effective 3/16/24; WSR 22-13-093, 23-12-107, and 23-20-027, § 51-54A-0501, filed 6/14/22, 6/7/23, and 9/25/23, effective 3/15/24.]

503.1 Where required. Fire apparatus access roads shall be provided and maintained in accordance with locally adopted street, road, and access standards.503.1.1 Buildings and facilities. This section is not adopted.503.1.2 Additional access. This section is not adopted.503.1.3 Hi…

507.3 Fire flow. Fire flow requirements for buildings or portions of buildings and facilities shall be determined by an approved method.EXCEPTIONS:1. Fire flow is not required for structures under 500 square feet (46 m2) with a B, U or R-1 occupancy where structures are at least …

508.1.2 Separation. The fire command center shall be separated from the remainder of the building by not less than a 2-hour fire barrier constructed in accordance with Section 707 of the International Building Code or horizontal assembly constructed in accordance with Section 711…

510.1 Emergency responder communication coverage in new buildings. Approved in-building, emergency responder communications enhancement system (ERCES) for emergency responders shall be provided in all new buildings. In-building ERCES within the building shall be based on the exis…

605.4.1.1 Approval. Outdoor fuel oil storage tanks shall be in accordance with UL 142, UL 142A, or UL 2085.605.4.2.1 Approval. Indoor fuel oil storage tanks shall be in accordance with UL 80, UL 142, UL 142A, or UL 2085.605.4.2.2 Quantity limits. One or more fuel oil storage tank…

606.2 Where required. A Type I hood shall be installed at or above all commercial cooking appliances and domestic cooking appliances used for commercial purposes that produce grease laden vapors.EXCEPTIONS:1. Factory-built commercial exhaust hoods that are listed and labeled in a…