(1) This regulation does not apply to the following watercraft—
(a) a watercraft being used for official duty by the Commonwealth, a State or a local government;
(b) a watercraft owned by the State;
(c) a watercraft being used to carry out approved works.
(2) In this section—
approved works means works, including construction, dredging, installation and maintenance of navigation aids, approved under the Planning Act or Transport Operations (Marine Safety) Act 1994.