40.1. If the division of the territory of a municipality into electoral districts complies with sections 9 and 11 and the first paragraph of section 12 or the first paragraph of section 12.0.1, the municipality may maintain the existing division into electoral districts for the purposes of the general election following that for which the division into electoral districts was made or was maintained under this division. The municipality must first apply to the Commission for confirmation that it meets the requisite conditions for maintaining the division.