### Question
How is the "tier 2 emission standards" defined?


### Answer
The term **tier 2 emission standards** is defined in *42 U.S.C. § 16102* as follows -

> the motor vehicle emission standards that apply to passenger cars, light trucks, and larger passenger vehicles manufactured after the 2003 model year, as issued on February 10, 2000, by the Administrator of the Environmental Protection Agency under sections 7521 and 7545 of this title

#### Citation:
  - *42 U.S.C. § 16102*
  - Heading: **CHAPTER 149-ENERGY POLICY, 2005 > SUBCHAPTER VII-VEHICLES AND FUELS > Part D-Miscellaneous**

