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 | - 1926.400(b) - Applicable standards to protect employees, not engaged in electrical work, operating an aerial lift within 10 feet of overhead electrical lines. |
| 2 | - 1926.400, 1926.400(b) - Applicable standards to protect employees, not engaged in electrical work, operating an aerial lift within 10 feet of overhead electrical lines. |
| 3 | - 1926.400 - Safety and health standards pertaining to the electrical trades. |
| 4 | - 1926.400 - Construction electrical safety. |
| 5 | - 1926.400 - Ground Fault Protection. |
| 6 | - 1926.400 - Double-insulated tools and ground-fault protection on construction sites. |
| 7 | - 1926.400(b) - Request for clarification on ground fault circuit interrupters on portable generators forwarded to the national office. |
| 8 | - 1926.400 - Double insulated tools on construction sites. |
| # | Regulations |
|---|---|
| 1 | Introduction. |
| # | Federal Register |
|---|---|
| 1 | - 1926.400 - 49:4949 - Electrical |
| 2 | - 1926.400 - 42:47182-4 - Ground Fault Protection |
| 3 | - 1926.400 - 41:55696 - Ground Fault Protection |
| 4 | - 1926.400 - 38:33397 - Ground Fault Protection |