UL Standard for Safety Self-Ballasted Lamps and Lamp Adapters - Section / Paragraph Reference: Supplement SC (NEW) Subject: Requirements for evaluating LED lamps and fluorescent lamp adapters as direct replacements for specific fluorescent lamps (Type A)* *This CRD supersedes UL 1993 CRD dated 2013-05-20 and 2013-11-07 (Edition 4: December 4, 2012)