CFR 40-63.546-2014 Protection of Environment. Part63:National emission standards for hazardous air pollutants for source categories. Section63.546:Compliance dates.
(a) For affected sources that com-menced construction or reconstruction on or before May 19, 2011, you must demonstrate compliance with the re-quirements of this subpart no later than January 6, 2014.
CFR 40-63.546-2014 history
2014CFR 40-63.546-2014 Protection of Environment. Part63:National emission standards for hazardous air pollutants for source categories. Section63.546:Compliance dates.