Commonwealth Consolidated Regulations Commonwealth Consolidated Regulations(1) If necessary in the interests of the safety of air navigation, CASA may, in writing, direct a certified designer or an authorised designer, within a reasonable period specified in the direction, to amend the designer's operations manual by:
(a) including in the manual the information or other things set out or described in the direction; or
(b) altering the information or other things in the manual in the manner set out in the direction.
(2) CASA may extend the period by written notice, before or
after the end of the period referred to in subregulation (1).