16VAC25-50-290: Application of Commonwealth serial numbers

A. Upon completion of the installation of a new boiler or pressure vessel or at the time of the initial certificate inspection of an existing installation each boiler or pressure vessel shall be stamped with a serial number of the Commonwealth, consisting of the postal abbreviation for the Commonwealth and a unique series of numbers not less than 3/16-inch in height and arranged as follows:

VA 0000

B. All cast iron, low-pressure heating boilers shall have securely attached to the front of the boiler a metallic tag of not less than one inch in height, which shall have the serial number of the Commonwealth stamped on it.

C. All pressure vessels constructed of cast iron, or of a material of such thickness or type that it should not be stamped, shall have securely attached a metallic tag not less than one inch in height, which shall have the serial number of the Commonwealth stamped on it.