As used in sections 7-339a to 7-339l, inclusive, unless a different meaning clearly appears from the context: “Public agency” means any municipality, as defined in § 7-148cc, of the state of Connecticut, and any local governmental unit, subdivision or special district of another state; “interlocal agreement” means an agreement entered into pursuant to said sections; “interlocal advisory board” means a board established pursuant to said sections; “participating public agency” means a party to an interlocal agreement; “legislative body” has the meaning assigned to it by § 1-1 but, where the legislative body is the town meeting, the requirements of said sections as to providing the opportunity for public comment shall not apply.