### Question
How does the law define unplanned event?


### Answer
Under *16 U.S.C. § 1601*, **unplanned event** is defined as:

> any unplanned disturbance that—


(aa) disrupts ecosystem or forest structure or composition

#### Citation:
  - *16 U.S.C. § 1601*
  - Heading: **CHAPTER 36-FOREST AND RANGELAND RENEWABLE RESOURCES PLANNING > SUBCHAPTER I-PLANNING**

