CFR 40-63.542-2014 Protection of Environment. Part63:National emission standards for hazardous air pollutants for source categories. Section63.542:Definitions.
Terms used in this subpart are de-fined in the Clean Air Act, in subpart A of this part, or in this section as fol-lows:
CFR 40-63.542-2014 history
2014CFR 40-63.542-2014 Protection of Environment. Part63:National emission standards for hazardous air pollutants for source categories. Section63.542:Definitions.