16 Va. Admin. Code § 25-50-550
Fuel burning apparatus and systems shall be equipped with regulating and protective controls in accordance with applicable standards of the American Gas Association, Underwriters Laboratories, ANSI/ASME-CSD-1, or National Fire Protection Association (NFPA) No. 85 Series, or equivalent recognized standards.
§§ 40.1-22 and 40.1-51.5 et seq. of the Code of Virginia.
Derived from VR425-01-75 § 4.17, eff. July 1, 1974; amended, eff. November 1, 1978; July 1, 1991; September 1, 1993.