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.
| # | Letters of Interpretation | 
|---|---|
| 1 | - 1926.56(a) - Tunnel illumination requirements. | 
| 2 | - 1926.56 - OSHA accepts employers' use of the ANSI/IES-RP-7-1991 incorporated by reference or adopted into OSHA standards. | 
| 3 | - 1926.56 - Requirements for minimum illumination at construction sites. | 
