C.__Include a life-cycle cost analysis that explicitly considers cost and benefits over a minimum of 30 years and that explicitly includes the public health and environmental benefits associated with energy-efficient building design and construction, to the extent they can be reasonably quantified.

Rules adopted pursuant to this section apply to all new or substantially renovated state-owned or state-leased buildings and buildings built with state funds, including buildings funded though state bonds or the Maine Municipal Bond Bank, regardless of whether the planning and design for construction is subject to approval by the department.

Rules adopted pursuant to this section may provide for exemptions, waivers or other appropriate consideration for buildings with little or no energy usage, such as unheated sheds or warehouses.

The Bureau of General Services shall adopt rules pursuant to this section by July 1, 2004.__Rules adopted pursuant to this section are routine technical rules as defined in Title 5, chapter 375, subchapter 2-A.

3.__Approval.__A state agency responsible for approving the construction of a new or substantially renovated state-owned or state-leased building and buildings built with state funds, including buildings funded though state bonds or the Maine Municipal Bond Bank, may not grant such approval unless the agency or other entity or organization proposing the construction can show that it has duly considered the most energy-efficient and environmentally efficient designs suitable in accordance with rules adopted pursuant to this section.

Sec. 2. 20-A MRSA §15908-A is enacted to read:

§15908-A.__School energy efficiency standards rules

1.__Definition.__For purposes of this section, "substantially renovated" means any renovation for which the cost exceeds 50% of the building's current value prior to renovation.

2.__Rules.__The state board, in consultation with the Department of Administrative and Financial Services and the