If an AIS provider provides a NOTAM service, the provider must ensure that the service:
(a) operates 24 hours a day, every day of the year; and
(b) issues a NOTAM in the following circumstances:
(i) the circumstances mentioned in Annex 15 to the Chicago Convention;
(ii) when required by Australian law;
(iii) when it is necessary in the interests of aviation safety; and
(c) has agreements with international NOTAM offices for the exchange of NOTAMS; and
(d) is connected to the aeronautical fixed service.