(1) A person who wants to establish that he or she is entitled to be paid travelling expenses under this Part must make a claim in accordance with section 6 for a determination that he or she is entitled to be paid travelling expenses under this Part.
(2) A claim for travelling expenses must be made:
(a) within 12 months after the completion of the travel to which it relates; or
(b) if the Commission thinks that there are exceptional circumstances that justify extending that period--such further period as the Commission allows.