# Where is other information concerning the role of MROs and the verification process found in this regulation?

**Citation:** 49 CFR 40.169  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2023-10-01  
**Published:** Not stated

You can find more information concerning the role of MROs in several sections of this part:

§ 40.3—Definition. §§ 40.47-40.49—Correction of form and kit errors. § 40.67—Role in direct observation and other atypical test situations. § 40.83—Laboratory handling of fatal and correctable flaws. § 40.97

## Document text

You can find more information concerning the role of MROs in several sections of this part:

§ 40.3—Definition. §§ 40.47-40.49—Correction of form and kit errors. § 40.67—Role in direct observation and other atypical test situations. § 40.83—Laboratory handling of fatal and correctable flaws. § 40.97—Laboratory handling of test results and quantitative values. § 40.99—Authorization of longer laboratory retention of specimens. § 40.101—Relationship with laboratories; avoidance of conflicts of interest. § 40.171—Request for test of split specimen. § 40.187—Action concerning split specimen test results. § 40.193—Role in “shy bladder” situations. § 40.195—Role in cancelling tests. §§ 40.199-40.203—Documenting errors in tests. § 40.327—Confidentiality and release of information. § 40.347—Transfer of records. § 40.353—Relationships with service agents.

[65 FR 79526, Dec. 19, 2000, as amended at 82 FR 52245, Nov. 13, 2017]

## Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-2023-title49-vol1/CFR-2023-title49-vol1-sec40-169>
- Source ID: `govinfo-cfr`
- SHA-256: `9cb4282cd0f4db7690e1b52fe2fc0d13c41693138ceadf75339accc66bf846ce`
- Retrieved: 2026-08-12T01:42:18.030Z
- Exported: 2026-08-23T09:01:18.375Z
- Document slug: `49-cfr-40-169`

### Source metadata

```json
{
  "part": "40",
  "section": "40.169",
  "subpart": "Subpart G—Medical Review Officers and the Verification Process",
  "annualEdition": 2023,
  "revisedAsOf": "2023-10-01",
  "govInfoPackage": "CFR-2023-title49-vol1",
  "legalStatus": "official-annual-cfr-edition",
  "effectiveDateNote": null,
  "historicalAnchor": true,
  "historicalAnchorNote": "The section appears in an official annual CFR edition but is absent from the connected current eCFR corpus.",
  "jurisdiction": "US"
}
```