For the purposes of subsections 12N(1), (2) and (3) and 12P(1), the method by which notice must be given is:
(a) in writing to the proponent of the activity covered by the authorisation to which the notice relates; or
(b) by a message transmitted by radio, telephone or other electronic means to the proponent of the activity covered by the authorisation to which the notice relates; or
(c) by notice published in the Gazette .