The most current state-adopted International Mechanical Code, International Fuel Gas Code, NFPA 58 Liquefied Petroleum Gas Code, and NFPA 54 National Fuel Gas Code, as published by the International Code Council and the National Fire Protection Association, as hereafter amended or revised by the Washington State Building Code Council and published as Chapter 51-52 WAC, is adopted as the mechanical code of the City, except as hereinafter amended. [Ord. 4515 § 2, 2021; Ord. 4296, 2016; Ord. 4108, 2013; Ord. 3964, 2010; Ord. 3670 § 10, 2004; Ord. 3316 § 12, 1998; Ord. 3135 § 1, 1996; Ord. 2883 § 2, 1992; Ord. 2725 § 1, 1989; Ord. 2603 § 1, 1986; Ord. 2502 § 1, 1984; Ord. 2155 § 1, 1980; Ord. 1855 § 1, 1977; Code 1970 § 16.32.010.]