170Certain persons to present evidence of identity

170  Certain persons to present evidence of identity Persons on overseas vessels may be required to present evidence of identity  (1) A person, whether a citizen or a non‑citizen, who travels, or appears to intend to travel, on an overseas vessel from a port to another port may be required by a clearance officer at either port or by officers at both ports:  (a) to present to a clearance authority prescribed evidence (which might include a personal identifier) of the person’s identity; and  (b) to provide to a clearance authority any information (including the person’s signature, but not any other personal identifier) required by this Act or the regulations; and  (c) to comply with any requirement made by a clearance officer under section 257A to provide one or more personal identifiers to a clearance authority; and  (d) if under paragraph (a) the person presents evidence to an authorised system—to provide to the authorised system a photograph or other image of the person’s face.  (2) A person is to comply with paragraphs (1)(a) and (b) in a prescribed way.  (2AA) A person may comply with a requirement referred to in subsection (1) to present or provide evidence, information or personal identifiers to an authorised system only if:  (i) before the person leaves the port at which the requirement is made, a clearance officer does not require the person to present or provide evidence, information or personal identifiers referred to in subsection (1) (other than a passenger card) to a clearance officer; or  (ii) if subparagraph (i) applies—a clearance officer determines that the person has complied with the requirement referred to in subsection (1).