UL Subject 147A
Standard for Nonrefillable (Disposable) Type Fuel Gas Cylinder Assemblies (Bulletin, 2/18/2000)
standard by Underwriters Laboratories, 02/18/2000
UL Subject 1563
Standard for Electric Spas, Equipment Assemblies, and Associated Equipment (Bulletin, 2/18/2000)
standard by Underwriters Laboratories, 02/18/2000