Sec. 6. 10 MRSA §1415-C, first ¶, as amended by PL 2003, c. 151, §3, is repealed.

Sec. 7. 10 MRSA §1415-C, sub-§3, as amended by PL 2003, c. 645, §4, is further amended to read:

3. Multifamily structures. Effective January 1, 2004 2006, in addition to conforming to the requirements of this section, any new construction or renovation of a conditioned space in any residential building of more than 2 dwelling units must conform to ASHRAE Standard 62-2001 and ASHRAE Standard 90.1-2001. For the purposes of this subsection, compliance with the 2003 edition of the International Energy Conservation Code published by the International Code Council constitutes compliance with ASHRAE Standard 90.1-2001.:

A.__Chapter 11 of the International Residential Code for One- and Two-Family Dwellings adopted by the International Code Council in 2003 or the 2003 edition of the International Energy Conservation Code published by the International Code Council; and

B. The standards adopted by ASHRAE in 2003 for ventilation practices in residential low-rise building construction entitled "Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings," commonly referred to as ASHRAE 62.2-2003.

Sec. 8. 10 MRSA §1415-C, sub-§§4 and 5, as amended by PL 1991, c. 824, Pt. A, §14, are further amended to read:

4. Waiver. A waiver from subsection 3 may be granted by the commissioner commission on a case-by-case basis for instances of renovation as defined by section 1413, subsection 15. In regards to the renovation of historic buildings, a waiver is granted when the Executive Director of the State Historic Preservation Commission determines that adherence to the energy building standards would result in irreparable damage to the historic character of a building on the National Register of Historic Places, eligible for nomination to the national register or designated as a historic building by a certified municipal historic preservation ordinance. In other instances, such as the