#	Letters of Interpretation
1	10/21/2024 - 1910.147(d) - Lockout/Tagout (LOTO) Feasibility and "Alternative Methods"
2	12/12/2012 - 1910.147(d)(6) - 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(d)(5) - 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 - 1910.147(d)(4) - 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 - 1910.147(d)(3) - 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 - 1910.147(d)(2) - Whether an LED type device ca be used for the isolation and deenergization verification requirements of 1910.147 and 1910.333.
7	04/18/2007 - 1910.147(d)(5)(ii) - PRCS and LOTO requirements for accumulation of stored energy in steam pits
8	04/22/2005 - 1910.147(d) - Lock out/Tag out (LOTO) requirements for die-setting operations in hydraulic power presses.
9	02/10/2004 - 1910.147(d)(4)(i) - Clarification of "authorized" and "affected" employees and proper energy control procedures.
10	02/10/2004 - 1910.147(d), 1910.147(d)(4)(i) - Clarification of "authorized" and "affected" employees and proper energy control procedures.
11	01/29/2002 - 1910.147(d) - Authorized employees must have the opportunity to verify energy isolation in group lockout/tagout