WAC 51-52-0101. Section 101 — General
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Washington Administrative Code › Title 51 › Chapter 51-52 › Section 51-52-0101
Text
101.2 Scope. This code shall regulate the design, installation, maintenance, alteration and inspection of mechanical systems that are permanently installed and utilized to provide control of environmental conditions and related processes within buildings. This code shall also regulate those mechanical systems, system components, equipment and appliances specifically addressed herein. The installation of fuel gas distribution piping and equipment, fuel gas-fired appliances and fuel gas-fired appliance venting systems shall be regulated by the International Fuel Gas Code . References in this code to Group R shall include Group I-1, Condition 2 assisted living facilities licensed by Washington state under chapter 388-78A WAC and Group I-1, Condition 2 residential treatment facilities licensed by Washington state under chapter 246-337 WAC.
EXCEPTIONS:
1. Detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories high with separate means of egress and their accessory structures shall comply with the International Residential Code .
2. The standards for liquefied petroleum gas installations shall be the 2020 Edition of NFPA 58 (Liquefied Petroleum Gas Code) and the 2021 Edition of ANSI Z223.1/NFPA 54 (National Fuel Gas Code).
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