PURPOSE: This rule regulates the design, manufacturing, installation and inspection of recreational vehicle heating systems and related systems. The scope of National Fire Protection Association Manual No. 501C, Chapter 2, Recreational Vehicles, 1987 edition covers the heat producing appliances and fuel systems within or on recreational vehicles. Whenever nationally recognized standards for heat producing appliances and fuel systems and this Chapter 2 differ, the requirements of the latter shall apply. AUTHORITY: section 323.020, RSMo 1986.* Original rule filed May 13, 1977, effective Jan. 13, 1978. Amended: Filed May 2, 1985, effective Sept. 27, 1985. Amended: Filed March 3, 1989, effective June 29, 1989. *Original authority: 323.020, RSMo 1947.