### Question
What is the definition of 100-year floodplain?


### Answer
The definition of **100-year floodplain** is as follows in *42 U.S.C. § 4004*:

> 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**

