The following shall be regulated buildings:

1. 1. Any new public building exceeding twenty thousand (20,000) square feet of occupied floor space shall comply with the provisions of the lighting power limit; and

2. 2. The lighting standards for existing public buildings exceeding twenty thousand (20,000) square feet of occupied floor space shall be the same as those for new public buildings as contained in Section 5 of this act, subject however, to the following provisions:

   1. a. existing public buildings shall be required to modify lighting systems as soon as practicable, but in keeping with economic and time constraints. In any case, full compliance shall be accomplished within four (4) years. However, an existing building shall be considered in compliance if it is estimated that such modifications result in an annual energy savings of less that twenty-five percent (25%) of the cost of the modifications,
   2. b. nothing in this act shall cause the management of a public building to be relieved from the contractual obligation in existence at the time of adoption of this standard; in the event that an existing contractual obligation is at variance with the provisions of this act, the contractual obligation shall take precedence, and
   3. c. in the event that the management of a public building can demonstrate substantial financial impact in order to achieve compliance with this act, these buildings may be exempted from the provisions of this act. Substantial financial impact shall be determined by the governmental entity having responsibility for the administration of this act. In all cases, the burden of proof of substantial financial impact shall rest with the management of the public building.

Added by Laws 1979, HB 1177, c. 234, § 3, eff. October 1, 1979.