The commission shall, within 45 days after receipt of a draft county transportation expenditure plan forwarded pursuant to Section 131052, approve the draft plan unless one or more of the following findings is made:
- (a) There would be a significant negative regional impact as a result of the proposed projects.
- (b) There are insufficient funds available to implement the proposed projects.
- (c) Conflicts exist within the county transportation expenditure plan.
- (d) The estimates of proceeds from any proposed retail transactions and use tax ordinance are not reasonable.