For the purposes of paragraph 42(1)(b):
(a) before a service agreement is varied, each client covered by the agreement must be given written notice of:
(i) the proposed variation; and
(ii) the reasons for the proposed variation; and
(iii) the matters required by subsection 46(5), if relevant; and
(b) a variation of a service agreement must not take effect unless:
(i) each client covered by the agreement agrees in writing to the variation; or
(ii) if the agreement provides that the agreement of each client is not required for the variation--at least one client covered by the agreement agrees in writing to the variation, and any other conditions specified in the agreement are satisfied.