305.(1) The Commission must send the notice provided for in section 304 on the date mentioned thereon, to every municipality served under section 302. It must also forward a copy of that notice to the Commission municipale du Québec.
(2) Every municipality contemplated in subsection 1 must pay the amount of its share within thirty days after receiving the notice of the Commission, unless it decides to appeal therefrom before the Commission municipale du Québec by a motion filed therewith and served on the Commission within that thirty days’ delay.