内容简述: TITLE:GreenhouseGasEmissionsandFuelEfficiencyStandardsforMediumandHeavy-DutyEnginesandVehicles–Phase2
AGENCY:EnvironmentalProtectionAgency(EPA)andNationalHighwayTrafficSafetyAdministration(NHTSA),DepartmentofTransportation(DOT)
ACTION:Finalrule
SUMMARY:EP
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