# Regulus search export

- Query: `77 FR 26471`
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- Exported: 2026-08-23T02:44:36.215Z

## 1. Procedures for Transportation Workplace Drug and Alcohol Testing Programs: 6-acetylmorphine (6-AM) Testing

**Citation:** 77 FR 26471  
**Type / status:** rulemaking / historical  
**Agency:** Office of the Secretary  
**Effective / published:** 2012-07-03 / 2012-05-04

The Department is amending certain provisions of its drug testing procedures for 6-acetylmorphine (6-AM), a unique metabolite of heroin. Laboratories and Medical Review Officers (MROs) will no longer be required to consult with one another regarding the testing for the presence of morphine when the laboratory confirms the presence of 6-AM. This rule is intended to streamline the laboratory process for analyzing and reporting 6-AM positive results and will facilitate MRO verification of 6-AM positive results.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/2012/05/04/2012-10665/procedures-for-transportation-workplace-drug-and-alcohol-testing-programs-6-acetylmorphine-6-am>
- Source ID: `federal-register`
- SHA-256: `4b0558d25fe96f7aa86378b9647b38eefc3ee1912e3d73adb3cb10adedb929fa`
- Retrieved: 2026-08-20T06:04:51.294Z
- Document slug: `federal-register-2012-10665`
- Related records: 6