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 | - 1910.169(a)(2)(i) - Requirements for air receivers installed after August 27, 1971 and periodic retesting. |
| 2 | - 1910.169, 1910.169(a)(2)(i) - Requirements for air receivers installed after August 27, 1971 and periodic retesting. |
| 3 | - 1910.169 - Pressure vessels used at oil and gas extraction/production facilities and applicability of 29 CFR 1910.106 |
| 4 | - 1910.169(b)(3) - Rules requiring safety check valves on compressed air equipment. |
| 5 | - 1910.169 - ASME Boiler and Pressure Vessel Code - Stop valves upstream of relief valves. |
| 6 | - 1910.169 - Requirements for off highway vehicles being exported from the UK to the USA. |