### Question
Can you define what claim means?


### Answer
**Claim** is defined as the following in *42 U.S.C. § 9601*:

> a demand in writing for a sum certain

#### Citation:
  - *42 U.S.C. § 9601*
  - Heading: **CHAPTER 103-COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPENSATION, AND LIABILITY > SUBCHAPTER I-HAZARDOUS SUBSTANCES RELEASES, LIABILITY, COMPENSATION**

