# Regulus search export

- Query: `46 FR 10159`
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- Exported: 2026-08-25T15:13:48.906Z

## 1. NTSB Safety Recommendation P-75-001

**Citation:** P-75-001  
**Type / status:** guidance / guidance  
**Agency:** National Transportation Safety Board  
**Effective / published:** 1975-04-02 / 1975-04-02

CONDUCT AN INDUSTRYWIDE SURVEY ON THE VALUE OF CASING PIPELINES BENEATH ROADS AND RAILROADS. THIS SURVEY SHOULD BE UNDERTAKEN IN COOPERATION WITH THE AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS, THE FEDERAL HIGHWAY ADMINISTRATION, APPROPRIATE INDUSTRY ASSOCIATIONS AND ENGINEERING SOCIETIES; AND 49 CFR 192.323, CASING, SHOULD BE AMENDED, IF NECESSARY.

### Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/carol-main-public/sr-details/P-75-001>
- Source ID: `ntsb-pipeline`
- SHA-256: `0e2f3a001848ea3f82f467d0cf82f979ee70f215c9e1403c7e89233d837aec42`
- Retrieved: 2026-08-20T04:57:24.741Z
- Document slug: `ntsb-recommendation-p-75-001`
- Related records: 6