#	Letters of Interpretation
1	08/05/2015 - 1910.333(b) - Lockout of tagout requirements for electrical hazards
2	08/05/2015 - 1910.333(b) - Lockout/tagout of electrical hazards by workers who install, maintain, repair or replace premises wiring systems.
3	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.
4	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.
5	11/16/2000 - 1910.333(b) - Applicability of OSHA's LOTO standards; isolation and verification procedures.
6	03/22/2000 - 1910.333(b) - Lockout/tagout: preferred means of energy isolation; non cord-and-plug powered equipment.
7	09/09/1993 - 1910.333(b) - Qualified employee requirements for the servicing and maintenance of electrical equipment.

#	Regulations
1	03/13/2001 - - Selection and use of work practices.