### Question
How does the law define 3D elevation data?


### Answer
Under *43 U.S.C. § 3101*, **3D elevation data** is defined as:

> 3D, high-resolution data obtained using LiDAR, IfSAR, or other methods over the United States (including territories)

#### Citation:
  - *43 U.S.C. § 3101*
  - Heading: **CHAPTER 49-NATIONAL LANDSLIDE PREPAREDNESS**

