### Question
How does the law define agent?


### Answer
Under *7 U.S.C. § 8901*, **agent** is defined as:

> a nuclear, biological, chemical, or radiological substance that causes agricultural disease or the adulteration of products regulated by the Secretary of Agriculture under any provision of law

#### Citation:
  - *7 U.S.C. § 8901*
  - Heading: **CHAPTER 114-AGRICULTURAL SECURITY**

