(1) This division does not prevent the amendment of an assessment of the greenhouse shortfall, and of the liability for greenhouse penalty, of a benchmark participant to give effect to—
(a) the decision on any review or appeal under the Act; or
(b) its amendment by reduction of any particular following the participant's objection or pending any review or appeal under the Act.
(2) A greenhouse penalty payable under an assessment amended under this division is taken to be payable—
(a) if the amendment is completely or partly as a result of an error by the regulator—on the day on which the amended assessment is made; or
(b) in any other case—on the day on which a greenhouse penalty became payable under the original assessment.
(3) An amended assessment is taken to be an assessment for the Act.
Note A reference to an Act includes a reference to the statutory instruments made or in force under the Act, including any regulation (see Legislation Act, s 104).