---
kind: "section"
citation: "46 C.F.R. § 4.06-50"
title: "46"
number: "4.06-50"
heading: "Specimen analysis and follow-up procedures."
url: "https://uscodex.org/cfr/46/4.06-50"
---

# §4.06-50. Specimen analysis and follow-up procedures.

- (a) Each laboratory will provide prompt analysis of specimens collected under this subpart, consistent with the need to develop all relevant information and to produce a complete analysis report.
- (b) Reports shall be sent to the Medical Review Officer meeting the requirements of [49 CFR 40.121](/cfr/49/40.121.md), as designated by the marine employer submitting the specimen for testing. Wherever a urinalysis report indicates the presence of a dangerous drug or drug metabolite, the Medical Review Officer shall review the report as required by [49 CFR part 40](/cfr/49/part40.md), [subpart G](/cfr/46/subpartG.md), and submit his or her findings to the marine employer. Blood test reports indicating the presence of alcohol shall be similarly reviewed to determine if there is a legitimate medical explanation.
- (c) Analysis results which indicate the presence of alcohol, dangerous drugs, or drug metabolites shall not be construed by themselves as constituting a finding that use of drugs or alcohol was the probable cause of a serious marine incident.

## Notes

### Amendments

[CGD 86-067, 53 FR 47078, Nov. 21, 1988, as amended by CGD 90-053, 58 FR 31107, May 28, 1993; USCG-2000-7759, 66 FR 42967, Aug. 16, 2001]

### Source

Source: CGD 86-067, 53 FR 47078, Nov. 21, 1988, unless otherwise noted.

### Authority

Authority: 43 U.S.C. 1333; 46 U.S.C. 2103, 2303a, 2306, 6101, 6301, 6305, 56311, and 70034; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.4. Subpart 4.40 issued under 49 U.S.C. 1903(a)(1)(E).

### Source

Source: CGD 74-119, 39 FR 33317, Sept. 17, 1974, unless otherwise noted.

### Amendments

[CGD 86-067, 53 FR 47078, Nov. 21, 1988, as amended by CGD 90-053, 58 FR 31107, May 28, 1993; USCG-2000-7759, 66 FR 42967, Aug. 16, 2001]