Section R. 408.31098c - (C506.4) Lighting alterationsR1098b. Section 9.1.2 of the standard is amended to read as follows:
9.1.2. Lighting alterations. For the alteration of any lighting system in an interior space, that space shall comply with the lighting power density (LPD) requirements of section 9 applicable to that space and the automatic shutoff requirements of section 9.4.1.1. For the alteration of any lighting system in an exterior building application, that lighting system shall comply with the lighting power density (LPD) requirements of section 9 applicable to the area illuminated by that lighting system and the applicable control requirements of sections 9.4.1.4(a) and 9.4.1.4(b). These alterations shall include all luminaires that are added, replaced, or removed. This requirement shall also be met for alterations that involve only the replacement of lamps plus ballasts. Alterations do not include routine maintenance or repair situations. Exception: Alterations that involve less than 50% of the connected lighting load in a space or area do not have to comply with these requirements, provided that such alterations do not increase the installed LPD.
Mich. Admin. Code R. 408.31098c