Sec. 1. 10 MRSA §1413, sub-§4, as enacted by PL 1979, c. 503, §2, is amended to read:

4. Commission. "Commission" means the Commission on Energy Efficiency Building Performance Standards Public Utilities Commission.

Sec. 2. 10 MRSA §1413, sub-§7, as amended by PL 1989, c. 501, Pt. DD, §21, is repealed.

Sec. 3. 10 MRSA §1413, sub-§12, as amended by PL 1987, c. 818, §2, is further amended to read:

12. Commercial building. "Commercial or institutional building" means any building and any addition to an existing building which that is not a residential or industrial building as defined herein.

Sec. 4. 10 MRSA §1413, sub-§16, as amended by PL 1991, c. 246, §5, is further amended to read:

16. Residential building. "Residential building" means a detached one-family or 2-family dwelling; a dwelling in a group of single-family or multifamily structure designed for year-round or winter seasonal use and additions to those buildings. Notwithstanding section 9042, subsection 3, this term includes modular homes as defined in Title 30-A, section 4358 that are installed in the State dwellings that is not more than 3 stories in height and with a separate means of egress; a group of more than 2 dwelling units that are 3 stories or fewer in height and whose occupants are primarily permanent; a building 3 stories or fewer in height that is arranged for occupancy as a residential care or assisted living facility for more than 5 but not more than 16 occupants; and an accessory structure to any of these buildings.

This definition is intended to be the same as the definition of "residential building" in the model building energy code adopted by the commission by major substantive rule pursuant to Title 35- A, section 121.

Sec. 5. 10 MRSA §1414-A, as amended by PL 1989, c. 501, Pt. DD, §23, is further amended to read:

§1414-A. Adoption of energy performance building

standards by state agencies