#	Letters of Interpretation
1	08/05/2015 - 1910.333(b) - Lockout/tagout of electrical hazards by workers who install, maintain, repair or replace premises wiring systems.
2	08/05/2015 - 1910.333(b) - Lockout of tagout requirements for electrical hazards
3	12/12/2012 - 1910.333(b)(2)(iv)(B) - Whether an LED type device ca be used for the isolation and deenergization verification requirements of 1910.147 and 1910.333.
4	12/12/2012 - 1910.333(b)(2)(iii)(D) - Whether an LED type device ca be used for the isolation and deenergization verification requirements of 1910.147 and 1910.333.
5	12/12/2012 - 1910.333(b)(2) - Whether an LED type device ca be used for the isolation and deenergization verification requirements of 1910.147 and 1910.333.
6	12/12/2012 - 1910.333(b), 1910.333(b)(2), 1910.333(b)(2)(iii)(D), 1910.333(b)(2)(iv)(B) - Whether an LED type device ca be used for the isolation and deenergization verification requirements of 1910.147 and 1910.333.
7	11/14/2006 - 1910.333(b)(2) - OSHA requirements for warning signs and protection from electric-arc-flash hazards and compliance with NFPA 70E-2004.
8	07/28/2006 - 1910.333(b)(2)(iii)(E) - Clarification about 29 CFR 1910.333 and 29 CFR 1910.147 as they relate to work inside an electrical panel and on related equipment.
9	07/28/2006 - 1910.333(b)(2) - Clarification about 29 CFR 1910.333 and 29 CFR 1910.147 as they relate to work inside an electrical panel and on related equipment.
10	07/28/2006 - 1910.333(b), 1910.333(b)(2), 1910.333(b)(2)(iii)(E) - Clarification about 29 CFR 1910.333 and 29 CFR 1910.147 as they relate to work inside an electrical panel and on related equipment.
11	10/27/2005 - 1910.333(b)(2) - Acceptability of using a light switch as a disconnecting means for the electrical lockout/tagout standard.
12	10/27/2005 - 1910.333(b)(1) - Acceptability of using a light switch as a disconnecting means for the electrical lockout/tagout standard.
13	11/16/2000 - 1910.333(b) - Applicability of OSHA's LOTO standards; isolation and verification procedures.
14	07/10/2000 - 1910.333(b)(2)(v)(C) - Evaluation of proposed modifications to the Bureau of Prisons' Lockout/Tagout (LOTO) procedures.
15	07/10/2000 - 1910.333(b)(2) - Evaluation of proposed modifications to the Bureau of Prisons' Lockout/Tagout (LOTO) procedures.
16	03/22/2000 - 1910.333(b) - Lockout/tagout: preferred means of energy isolation; non cord-and-plug powered equipment.
17	09/09/1993 - 1910.333(b) - Qualified employee requirements for the servicing and maintenance of electrical equipment.