# Regulus search export

- Query: `75 FR 49863`
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- Exported: 2026-08-23T15:02:39.981Z

## 1. On what basis does the MRO verify test results for 6-acetylmorphine (6-AM)?

**Citation:** 49 CFR 40.140  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 2011-10-01 / Not stated

As the MRO, you must proceed as follows when you receive a laboratory confirmed 6-AM test result: (a) If the laboratory confirms the presence of 6-AM in the specimen and there is also any level of quantitation of morphine, you must verify the test result positive. (b) When a laboratory 6-AM confir

### Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-2011-title49-vol1/CFR-2011-title49-vol1-sec40-140>
- Source ID: `govinfo-cfr`
- SHA-256: `54b580a2f3f1e6a55a33b66f63aa2fbdf4e2bb7bf267136bf0715aa3ae6cceff`
- Retrieved: 2026-08-12T01:41:46.575Z
- Document slug: `49-cfr-40-140`
- Related records: 2