# Regulus search export

- Query: `55 FR 797`
- Source type: All
- Part: All
- Source: All
- Status: All
- Jurisdiction: All
- Collection: All
- Incident class: All
- Sort: relevance
- Date from: Any
- Date to: Any
- As of: Current corpus
- Results: 1
- Exported: 2026-08-23T22:24:38.587Z

## 1. Retention of samples and retesting.

**Citation:** 49 CFR 199.17  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 2000-10-01 / Not stated

(a) Samples that yield positive results on confirmation must be retained by the laboratory in properly secured, long-term, frozen storage for at least 365 days as required by the DOT Procedures. Within this 365-day period, the employee or the employee's representative, the operator, the Administrato

### Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-2000-title49-vol3/CFR-2000-title49-vol3-sec199-17>
- Source ID: `govinfo-cfr`
- SHA-256: `725627c93743cafbaf9fbe9b4479050ccc2bf2a1d9cdd32d18c400fcd0bf370d`
- Retrieved: 2026-08-12T01:41:25.032Z
- Document slug: `49-cfr-199-17`
- Related records: 4