On October 14, 1994, the State of North Carolina, through the North Carolina Department of Environment, Health and Natural Resources, submitted a revision to the North Carolina State Implementation Plan (SIP). This revision is the adoption of an amendment to rule 15A NCAC 2D .0518 Miscellaneous Volatile Organic Compounds Emissions. This amendment was included to define that diacetone alcohol is considered to be a nonphotochemically reactive solvent. This rule is applicable to all sources of VOC emissions for which no other VOC emission standards are applicable.