Sec. 9. (a) Subject to subsection (b), an authorizer must notify an organizer that submits a proposal under section 4 of this chapter of the:
(1) acceptance of the proposal; or
(2) rejection of the proposal;
not later than seventy-five (75) days after the organizer submits the proposal, unless the authorizer and organizer mutually agree in writing to an extension.
(b) If an authorizer and an organizer mutually agree in writing to an extension under subsection (a), the extension may be for not more than fifteen (15) days.