(1) Not more than 60 days after the MMP is submitted to the CAA under section 11574(4), the CAA shall approve or reject the MMP and notify the planning committee. A notice that the CAA rejects the MMP shall state the specific reasons for the rejection.

  (2) Not more than 30 days after notice of the rejection of the MMP is sent under subsection (1), the planning committee may revise the MMP and submit the revised MMP to the CAA. After a revised MMP is timely submitted to the CAA under this subsection or the 30-day period expires and a revised MMP is not submitted, the CAA shall approve or reject the revised MMP or original MMP, respectively, and notify the planning committee.

  (3) If the CAA rejects the MMP under subsection (2), the CAA shall prepare and approve an MMP, subject to the continued running of the 3-year period under section 11571(8).

  (4) Not more than 10 business days after the CAA approves an MMP under subsection (1), (2), or (3), the DPA shall submit a copy of the MMP to the legislative body of each municipality located within the planning area.

  (5) Not more than 120 days after the MMP is submitted to the legislative body of a municipality, the legislative body may approve or reject the MMP. The legislative body shall notify the DPA of an approval or rejection.

  (6) Within 30 days after the deadline for municipal notification to the DPA under subsection (5), the DPA shall notify the department which municipalities timely approved the MMP, which timely rejected the MMP, and which did not timely notify the DPA of approval or rejection. The notice shall be accompanied by a copy of the MMP. If the MMP is not approved by at least 2/3 of the municipalities that timely notify the DPA of their approval or rejection under subsection (5), then the department shall proceed under subsection (7) or (9). If the MMP is approved by at least 2/3 of the municipalities that timely notify the DPA of their approval or rejection under subsection (5), then subsection (9) applies.

  (7) The department may approve an extension of a deadline under subsections (2) to (6) if the extension is requested by the entity subject to the deadline within a reasonable time after the issues giving rise to the need for an extension arise.

  (8) If the MMP is neither approved nor rejected by a deadline established in this subpart, subject to any extension under subsection (7), the MMP is considered automatically approved at that step in the approval process, and the approval process shall continue at the next step. This subsection does not apply to failure of an individual municipality to approve or disapprove the MMP under subsection (5).

  (9) Within 180 days after the MMP is submitted to the department under subsection (6), the department shall approve or reject the MMP. The department shall approve the MMP if the MMP complies with part 115. If the department approves the MMP, the MMP is final. If the department rejects the MMP, subsection (11) applies.

  (10) Before approving or rejecting an MMP under subsection (9), the department may return the MMP to the CAA with a written request for modifications necessary for approval under subsection (9) or to clarify the MMP. If the department returns the MMP for modifications, the running of the 180-day period under subsection (9) is tolled for 90 days or until the CAA responds to the department’s request, whichever occurs first. If the CAA does not approve the modifications requested by the department, subsection (11) applies.

  (11) Subject to subsection (9), if a CAA does not prepare an MMP or the MMP does not timely obtain an approval required by part 115, the department may prepare and approve an MMP for the county. An MMP prepared and approved by the department is final. Once the MMP is final, the county shall implement the MMP.