#	Letters of Interpretation
1	08/05/2015 - 1910.147(a) - Lockout/tagout of electrical hazards by workers who install, maintain, repair or replace premises wiring systems.
2	12/12/2012 - 1910.147(a)(1)(ii)(D) - Whether an LED type device ca be used for the isolation and deenergization verification requirements of 1910.147 and 1910.333.
3	12/12/2012 - 1910.147(a)(1)(i) - Whether an LED type device ca be used for the isolation and deenergization verification requirements of 1910.147 and 1910.333.
4	01/25/2008 - 1910.147(a)(2)(ii) - Use of a PLC system as an alternative measure which provides effective protection for minor servicing activities.
5	05/04/2007 - 1910.147(a)(2)(ii) - Lockout/Tagout and the provisions for testing or positioning of machines while they are energized.
6	02/26/2007 - 1910.147(a)(2)(ii) - Evaluation of the ElectroGuard disconnect system for use as an energy isolating device.
7	12/28/2006 - 1910.147(a)(2)(iii)(A) - Application of the Lockout/Tagout standard to die-setting activities and other machine setup operations.
8	12/28/2006 - 1910.147(a)(2)(ii) - Application of the Lockout/Tagout standard to die-setting activities and other machine setup operations.
9	10/11/2006 - 1910.147(a)(1)(i) - Use of LOTO device on equipment placed in "out of service" status not related to servicing or maintenance.
10	08/25/2006 - 1910.147(a)(2)(ii) - Several questions regarding OSHA's LOTO and Bakery standards 29 CFR 1910.147 and 1910.263.
11	01/18/2006 - 1910.147(a)(2)(ii) - Interlock requirements for access door(s) of trash compactor.
12	08/24/2005 - 1910.147(a)(2)(iii)(A) - Lockout/tagout requirements for servicing manually-controlled vertical/horizontal milling machine and drill press tool changes.
13	08/24/2005 - 1910.147(a)(2)(ii) - Lockout/tagout requirements for servicing manually-controlled vertical/horizontal milling machine and drill press tool changes.
14	04/22/2005 - 1910.147(a)(2)(ii) - Lock out/Tag out (LOTO) requirements for die-setting operations in hydraulic power presses.
15	04/07/2004 - 1910.147(a)(3)(ii) - Printing Industry: Lock Out/Tag Out and the essential elements of the inch-safe-service technique
16	04/07/2004 - 1910.147(a)(2)(ii) - Printing Industry: Lock Out/Tag Out and the essential elements of the inch-safe-service technique
17	03/22/2000 - 1910.147(a)(2)(iii)(A) - Lockout/tagout: preferred means of energy isolation; non cord-and-plug powered equipment.
18	12/16/1999 - 1910.147(a)(2)(ii) - Use of Monitored Power Systems for lockout/tagout.
19	02/26/1999 - 1910.147(a)(2)(iii)(A) - OSHA enforcement policy on vertical food mixers.
20	02/26/1999 - 1910.147(a)(2)(ii)(B) - OSHA enforcement policy on vertical food mixers.
21	02/26/1999 - 1910.147(a)(2)(ii)(A) - OSHA enforcement policy on vertical food mixers.
22	01/11/1996 - 1910.147(a) - Permit-required confined spaces and control of hazardous energy; vehicle LOTO.