46 CFR 199.01: Purpose.

(a) This part sets out the requirements for lifesaving appliances and arrangements for all inspected U.S. vessels except for—

(1) Offshore supply vessels, which are covered by subchapter L of this chapter;

(2) Mobile Offshore Drilling Units (MODU), which are covered by subchapter I-A of this chapter;

(3) Towing vessels, which are covered by subchapter M of this chapter;

(4) Small passenger vessels, which are covered by subchapters K and T of this chapter; and

(5) Sailing school vessels, which are covered by part 169 of this chapter.

(b) This subpart and subparts B, C, and D of this part set out the requirements for vessels on international voyages that are subject to the International Convention for the Safety of Life at Sea, 1974, and its Protocol of 1978, as amended (SOLAS).

(c) Subparts E and F of this part set out additional requirements, alternatives, and exemptions for vessels that are not subject to SOLAS.