### Question
How does UNITED STATES&ndash;MEXICO&ndash;CANADA AGREEMENT IMPLEMENTATION define period costs?


### Answer
Under *19 U.S.C. § 4531*, **period costs** is defined as:

> costs, other than product costs, that are expensed in the period in which they are incurred, such as selling expenses and general and administrative expenses

#### Citation:
  - *19 U.S.C. § 4531*
  - Heading: **CHAPTER 29-UNITED STATES&ndash;MEXICO&ndash;CANADA AGREEMENT IMPLEMENTATION > SUBCHAPTER II-CUSTOMS PROVISIONS**

