Subject to the effective date provided by section 3154 of this title, no new product covered by this chapter may be sold at retail, offered for retail sale, imported for retail sale or use, or installed by a contractor or other construction professional in buildings or structures in the State unless the efficiency rating of the product meets or exceeds the levels established by this chapter. The rules shall provide for waiver of the requirements of this section in the event of lack of availability of products of any given category, or for other good cause. (Added 1991, No. 259 (Adj. Sess.), § 12.)