Directs the Department of Environmental Quality (DEQ) to readopt the Idling Rule (15A NCAC 02D .0101, Heavy-Duty Vehicle Idling Restrictions, repealed by DEQ on November 1, 2016) as it existed prior to its repeal, with necessary adjustments in organization and content to comply with State or federal law.

Makes conforming repeal of Section 4.24 of SL 2015-286 which directed DEQ to repeal the Idling Rule.