After section 77M(3) of the Principal Act insert —
"(4) If the Minister varies a moderate risk or higher risk extractive industry work authority that relates to the carrying out of extractive industry on land that is wholly or partly within the levy area, or varies, suspends, adds or revokes a condition of such an extractive industry work authority, the Department Head must notify the Secretary within the meaning of the Melbourne Strategic Assessment (Environment Mitigation Levy) Act 2020 if the variation, suspension, addition or revocation changes or is likely to change—
(a) the amount or location of the land in the levy area affected by the carrying out of extractive industry under the authority; or
(b) the buffer zone of that land.
(5) A notification under subsection (4) must—
(a) be made in writing; and
(b) contain a copy of any prescribed information or document.
(6) In this section—
"buffer zone" has the same meaning as in section 7(2) of the Melbourne Strategic Assessment (Environment Mitigation Levy) Act 2020 ;
"levy area" has the same meaning as in the Melbourne Strategic Assessment (Environment Mitigation Levy) Act 2020 .".