UL Subject 125
Standard for Valves for Anhydrous Ammonia and LP-Gas (Other Than Safety Relief) (Bulletin, 7/30/1999)
standard by Underwriters Laboratories, 07/30/1999
UL Subject 971
Standard for Nonmetallic Underground Piping for Flammable Liquids (Bulletin, 7/19/1999)
standard by Underwriters Laboratories, 07/19/1999
UL Subject 147A
Standard for Nonrefillable (Disposable) Type Fuel Gas Cylinder Assemblies (Bulletin, 7/16/1999)
standard by Underwriters Laboratories, 07/16/1999
UL Subject 991
Standard for Tests for Safety-Related Controls Employing Solid-State Devices (Bulletin, 7/9/1999)
standard by Underwriters Laboratories, 07/09/1999