49 CFR § 831.50 - Applicability of this subpart.

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§ 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.