The Model Energy Code, 1992 Edition, for energy conservation in new building construction, published by the Council of American Building Officials, is hereby adopted by reference as the minimum requirements for the effective use of energy in new buildings. Notwithstanding the first sentence of this section, local jurisdictions shall have the option of adopting the 2000 International Energy Conservation Code with 2002 amendments, published by the International Code Council, as the minimum requirements for the effective use of energy in new buildings in that jurisdiction. However, any revisions or amendments to the above referenced codes shall become effective only upon approval by the general assembly or upon approval by the appropriate committee of the general assembly.