01232nam 2200361 450 991071663600332120210719125246.0(CKB)5470000002523807(OCoLC)1260470437(EXLCZ)99547000000252380720210719d1999 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierFlexibility in meeting tier 2 standardsAnn Arbor, MI :United States Environmental Protection Agency, Air and Radiation, Office of Mobile Sources,1999.1 online resource (3 pages)Regulatory announcement / Office of Mobile Sources"EPA420-F-99-016.""May 1999."AirPollutionStandardsUnited StatesVehiclesMotorsExhaust gasUnited StatesAirPollutionStandardsVehiclesMotorsExhaust gasUnited States.Environmental Protection Agency.Office of Mobile Sources,GPOGPOBOOK9910716636003321Flexibility in meeting tier 2 standards3261672UNINA