Within 30 days of receiving a final project proposal, the Secretary shall provide a copy of the proposal to the Administrator. The Secretary shall review each final project proposal to determine if it meets the criteria set forth in subsection (d). Not later than 6 months after receiving a final project proposal, and subject to the availability of funds, the Secretary, after consulting with the Administrator, shall approve or disapprove the proposal and provide written notification to the person who submitted the proposal and to the Administrator.