# Regulus search export

- Query: `56 FR 54816`
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- Exported: 2026-08-23T12:30:38.324Z

## 1. NTSB Safety Recommendation P-90-018

**Citation:** P-90-018  
**Type / status:** guidance / guidance  
**Agency:** National Transportation Safety Board  
**Effective / published:** 1990-04-20 / 1990-04-20

THE NTSB RECOMMENDS THAT THE RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION: AMEND 49 CFR 192 TO DISALLOW THE USE OF VEGETATION-TYPE SURVEYS FOR COMPLYING WITH ANY LEAKAGE SURVEY REQUIREMENT.

### Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/carol-main-public/sr-details/P-90-018>
- Source ID: `ntsb-pipeline`
- SHA-256: `b5a72bc7baf395b41623af51d825ae3f1cbecdf85b08475f30a56d6531b3be04`
- Retrieved: 2026-08-20T04:57:24.741Z
- Document slug: `ntsb-recommendation-p-90-018`
- Related records: 1