A variation or revocation made under section 154ZV must specify the details of the variation or revocation, including:
(a) the day on which the decision to make the variation or revocation was made; and
(b) the day on which the variation or revocation takes effect; and
(c) in the case of a variation that changes or removes the date on which the approval ceases to be in force--that change or removal; and
(d) in the case of a variation that changes or removes conditions to which the approval is subject--that change or removal.