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 | - 1910.178(a)(4) - Installation of strobe lights on forklifts as an additional warning device for forklifts used in vessel holds. | 
| 2 | - 1910.178(a)(4) - Written approval requirements for powered industrial truck modifications and additions that affect capacity or safe operation | 
| 3 | - 1910.178(a)(4) - Powered industrial truck addition/modification approval and marking requirements | 
| 4 | - 1910.178(a)(4) - Forklifts: free rigging requires manufacturer approval. | 
| 5 | - 1910.178(a)(4) - Powered industrial truck modifications and approval. | 
| 6 | - 1910.178(a)(4) - Evaluation of plan to retrofit fork lift equipment with an operator safety restraint system. | 
