### Question
How does the law define invasive plant species?


### Answer
Under *33 U.S.C. § 610*, **invasive plant species** is defined as:

> a plant that is nonnative to the ecosystem under consideration, the introduction of which causes or is likely to cause economic harm or harm to human health

#### Citation:
  - *33 U.S.C. § 610*
  - Heading: **CHAPTER 12-RIVER AND HARBOR IMPROVEMENTS GENERALLY > SUBCHAPTER IV-PARTICULAR WORK OR IMPROVEMENTS**

