2001UL 1572 BULLETIN-2001 UL Standard for Safety High Intensity Discharge Lighting Fixtures
2000UL 1572 BULLETIN-2000 UL Standard for Safety High Intensity Discharge Lighting Fixtures
1995UL 1572-1995 UL Standard for Safety High Intensity Discharge Lighting Fixtures (Fourth Edition; Reprint with Revisions Through and Including June 19@ 1997)