(a) A municipality may adopt an ordinance under chapter 59 of this title relating to sewage systems.(b) The ordinance shall not take effect until it is approved by the Department of Environmental Conservation as being at least as stringent as the minimum standards under section 3632 of this title.(c) The ordinance shall describe the officer or officers, which may include the local health officer, responsible for its enforcement.(d) Municipal ordinances relating to sewage systems that were approved before July 1984 under 18 V.S.A. § 613 by the Board of Health shall remain in effect and shall be deemed to have been adopted and approved under this section. Municipal ordinances relating to sewage systems that were approved before July 1984 by the Commissioner of Health shall remain in effect until either the ordinance has been approved pursuant to this chapter or July 1, 2002, whichever occurs first.Added 1983, No. 117 (Adj. Sess.), § 1; amended 1987, No. 76, § 18; 1993, No. 180 (Adj. Sess.) , § 3; 1997, No. 51 , § 4; 1997, No. 161 (Adj. Sess.), § 19a; 1999, No. 161 (Adj. Sess.) , § 6.