Transportation of natural or other gas by pipeline; Design of Plastic Pipelines
| Publish Date | Status | Effective Date |
Federal Register Citation |
| Sep 25, 1978 | Final Rule | Sep 25, 1978 | 43 FR 43308 (43 FR 43308) |
| May 18, 1978 | Final Rule | May 18, 1978 | 43 FR 21462 (43 FR 21462) |
| Apr 3, 1978 | NPRM | 42 FR 8386 | |
| Feb 10, 1977 | NPRM | Feb 10, 1977 | 42 FR 8386 |