### Question
How is the term 100-year floodplain defined?


### Answer
The term **100-year floodplain** is defined in *42 U.S.C. § 4004* as the following:

> that area which is subject to inundation from a flood having a 1-percent chance of being equaled or exceeded in any given year

#### Citation:
  - *42 U.S.C. § 4004*
  - Heading: **CHAPTER 50-NATIONAL FLOOD INSURANCE**

