# What relationship may an MRO have with a laboratory?

**Citation:** 49 CFR 40.125  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

As an MRO, you may not enter into any relationship with an employer's laboratory that creates a conflict of interest or the appearance of a conflict of interest with your responsibilities to that employer. You may not derive any financial benefit by having an employer use a specific laboratory. For 

## Document text

As an MRO, you may not enter into any relationship with an employer's laboratory that creates a conflict of interest or the appearance of a conflict of interest with your responsibilities to that employer. You may not derive any financial benefit by having an employer use a specific laboratory. For examples of relationships between laboratories and MROs that the Department views as creating a conflict of interest or the appearance of such a conflict, see § 40.101(b).

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-40.125>
- Source ID: `ecfr`
- SHA-256: `e62362e144aef843763deb5afe645f3e5c5142f9336ba7aa2ec800a5f7837d99`
- Retrieved: 2026-08-20T05:54:21.729Z
- Exported: 2026-08-22T20:02:28.354Z
- Document slug: `49-cfr-40-125`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "40",
  "section": "40.125",
  "subpart": "Subpart G—Medical Review Officers and the Verification Process",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```