(1) Except as otherwise provided in section 6 or section 6A, the baseline from which the breadth of the territorial sea of New Zealand is measured shall be the low-water mark along the coast of New Zealand, including the coast of all islands.
(2) For the purposes of this section, a low-tide elevation that lies wholly or partly within the breadth of sea that would be territorial sea if all low-tide elevations were disregarded for the purpose of the measurement of the breadth of the territorial sea shall be treated as an island.
Section 5(1): amended, on 1 August 1996, by section 3(2) of the Territorial Sea and Exclusive Economic Zone Amendment Act 1996 (1996 No 74).