---
kind: "section"
citation: "49 C.F.R. § 831.50"
title: "49"
number: "831.50"
heading: "Applicability of this subpart."
url: "https://uscodex.org/cfr/49/831.50"
---

# §831.50. Applicability of this subpart.

- (a) The regulations in this subpart apply when the NTSB is leading a marine or major marine casualty investigation.
- (b) In a marine or major marine casualty investigation led by the United States Coast Guard (USCG), this subpart applies if:
  - (1) Upon USCG's request for assistance, the NTSB is leading an associated investigative activity; or
  - (2) Upon coordination with the USCG, the NTSB elects to collect, test or analyze additional evidence beyond the scope of the USCG's investigation.

## Notes

### Authority

Authority: 49 U.S.C. 1113(f), 1116, 1131, 1134, unless otherwise noted.

### Source

Source: 82 FR 29694, June 29, 2017, unless otherwise noted.

### Authority

Authority: 49 U.S.C. 1113(f). Section 831.15 also issued under Pub. L. 101-410, 104 Stat. 890, amended by Pub. L. 114-74, sec. 701, 129 Stat. 584 (28 U.S.C. 2461 note).

### Source

Source: 82 FR 29685, June 29, 2017, unless otherwise noted.