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 | - 1910.25(c)(5) - Stair Angle and Tread Depth Requirements |
| 2 | - 1910.25(c)(3) - Stair Angle and Tread Depth Requirements |
| 3 | - 1910.25(c)(2) - Stair Angle and Tread Depth Requirements |
| 4 | - 1910.25(c)(1) - Stair Angle and Tread Depth Requirements |
| 5 | - 1910.25, 1910.25(c)(1), 1910.25(c)(2), 1910.25(c)(3), 1910.25(c)(5) - Stair Angle and Tread Depth Requirements |
| 6 | - 1910.25(c)(4) - Stairway Width |
| 7 | - 1910.25(c)(3) - Definition of Confined Space, as it may apply to large product heating and aging furnaces |
| 8 | - 1910.25(d)(2) - Rail extensions for a portable ladder;step-through ladder device. |