The
"required lifejacket" for an individual on board a ship is a lifejacket of an
appropriate size for the individual of the following type—
(a) for a ship, other than a personal watercraft, operating in smooth waters—(i) a lifejacket level 50; or(ii) a lifejacket level 50S; or(iii) a lifejacket level 100; or(iv) a compliant inflatable diver’s jacket;
(b) for a ship, other than a personal watercraft, operating in or beyond partially smooth waters—(i) if the ship is operating in partially smooth waters—(A) a lifejacket level 50; or(B) a lifejacket level 100; or(C) a compliant inflatable diver’s jacket; or(ii) if the ship is operating beyond partially smooth waters—a lifejacket level 100 or a compliant inflatable diver’s jacket;
(c) for a personal watercraft—(i) if the personal watercraft is operating in smooth waters—a lifejacket level 50 or a lifejacket level 50S; or(ii) if the personal watercraft is operating in or beyond partially smooth waters—a lifejacket level 50.