#	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

#	Federal Register
1	11/29/2021 - 1910.147(d) - 86:67727-67727 - Gestamp West Virginia LLC: Notice of Correction to Permanent Variance - PDF
2	03/02/2021 - 1910.147(d) - 86:12209-12217 - Gestamp West Virginia: Grant of Permanent Variance - PDF
3	08/05/2020 - 1910.147(d) - 85:47422-47429 - Gestamp West Virginia; Application for Permanent Variance and Interim Order; Grant of Interim Order; Request for Comments - PDF
4	05/20/2019 - 1910.147(d) - 84:22756-22762 - The Control of Hazardous Energy (Lockout/Tagout)
5	04/08/2016 - 1910.147(d) - 81:20680-20688 - Nucor Steel Connecticut Incorporated; Grant of a Permanent Variance - PDF
6	04/08/2016 - 1910.147(d), 1910.147(d)(4)(i), 1910.147(d)(4)(ii) - 81:20680-20688 - Nucor Steel Connecticut Incorporated; Grant of a Permanent Variance - PDF
7	12/02/2015 - 1910.147(d) - 80:75472-75480 - Nucor Steel Connecticut Incorporated; Application for Permanent Variance and Interim Order; Grant of Interim Order; Request for Comments - PDF

#	Regulations
1	08/01/2011 - - The control of hazardous energy (lockout/tagout).