(1) A variation of an authority by an appropriate authorising officer (whether formal or urgent) must:
(a) identify the controlled operation to which the authority relates; and
(b) state the name and rank or position of the person varying the authority; and
(c) if the authority was varied on an application made under section 15GP, state:
(i) the name of the applicant; and
(ii) whether the application was a formal variation application or an urgent variation application; and
(d) state the date and time when the variation of authority is or was granted; and
(e) describe the variation having regard to the matters referred to in subsection 15GO(2); and
(f) if the variation extends the period of effect of a formal authority--state the period of the extension.
(2) For the purposes of paragraph (1)(f), the period of the extension must not exceed:
(a) in the case of a formal variation of authority--the period that would result in the period of effect of the authority exceeding 3 months (including any previous extensions); and
(b) in the case of an urgent variation of authority--the lesser of:
(i) 7 days; and
(ii) a period that would result in the period of effect of the authority exceeding 3 months (including any previous extensions).