### Question
How is the term model year defined?


### Answer
The term **model year** is defined in *42 U.S.C. § 7521* as the following:

> the calendar year.

#### Citation:
  - *42 U.S.C. § 7521*
  - Heading: **SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Subchapter Referred to in Other Sections > Part Referred to in Other Sections**

