### Question
How does the law define model year?


### Answer
Under *15 U.S.C. § 2821*, **model year** is defined as:

> a manufacturer's annual production period (as determined by the Federal Trade Commission) for motor vehicles or a class of motor vehicles

#### Citation:
  - *15 U.S.C. § 2821*
  - Heading: **CHAPTER 55-PETROLEUM MARKETING PRACTICES > SUBCHAPTER II-OCTANE DISCLOSURE**

