46 C.F.R. § 122.212 Mandatory chemical testing following serious marine incidents.
Title 46 - Shipping
A marine employer whose vessel is involved in a casualty or incident that is, or is likely to become, a serious marine incident as defined in §4.03–2 in subchapter A of this chapter shall comply with the requirements of §4.06 in subchapter A of this chapter.
Title 46: Shipping
PART 122—OPERATIONS
Subpart B—Marine Casualties and Voyage Records
§ 122.212 Mandatory chemical testing following serious marine incidents.