Subchapters II and III of this chapter shall apply to the City of Wilmington and subchapter IV of this chapter shall apply to all other municipalities meeting the definition of “municipal corporation” in § 801(3) of Title 22 except those whose powers are vested in a Town Meeting or Town Assembly consisting of all eligible voters, residents, and/or leaseholders in the municipality, including Arden, Ardentown, and Ardencroft, and excepting the Board of Public Works of the City of Lewes, the New Castle Municipal Service Commission.