NAC445B.746. “Emission control system” defined.  


Latest version.
  • “Emission control system” means the components for controlling pollution that are present on an engine at the time that model of engine is certified. For a heavy-duty motor vehicle powered by a diesel engine, the term includes the emission control label.

     (Added to NAC by Environmental Comm’n, eff. 10-22-92; A by R102-02, 10-18-2002)