Lapse in Appropriations
For workplace safety and health, please call 800-321-6742; for mine safety and health, please call 800-746-1553; for Job Corps, please call 800-733-5627 and for Wage and Hour, please call 866-487-9243 (866-4-US-WAGE). This website is currently not being updated due to the suspension of Federal government services. The last update to the site was 10/1/2025. Updates to the site will start again when the Federal government resumes operations.
| # | Regulations |
|---|---|
| 1 | - - The control of hazardous energy (lockout/tagout). |
| # | Letters of Interpretation |
|---|---|
| 1 | - 1910.147(c)(4)(ii) - PSM compliance for ammonia refrigeration systems. |
| 2 | - 1910.147(c)(4)(i) - Use of additional lock on a conveyor and baler system exceeds one lockout device. |
| 3 | - 1910.147(c)(4)(ii) - Recognition of ANSI/ASSE Z244.1 "Control of Hazardous Energy - Lockout/Tagout and Alternative Methods" consensus standard |
| 4 | - 1910.147(c)(4) - Clarification of "authorized" and "affected" employees and proper energy control procedures. |
| 5 | - 1910.147(c)(4)(i) - Permit-required confined spaces and control of hazardous energy; vehicle LOTO. |