#	Letters of Interpretation
1	07/27/2023 - 1910.147(f)(3) - Group Lockout/Tagout
2	05/21/2021 - 1910.147(f)(3) - Group Lockout or Tagout
3	02/10/2004 - 1910.147(f)(3)(ii) - Clarification of "authorized" and "affected" employees and proper energy control procedures.
4	02/10/2004 - 1910.147(f)(3)(ii), 1910.147(f)(3) - Clarification of "authorized" and "affected" employees and proper energy control procedures.