### Question
How is the "agency information system" defined?


### Answer
The term **agency information system** is defined in *6 U.S.C. § 660* as follows -

> an information system used or operated by an agency or by another entity on behalf of an agency

#### Citation:
  - *6 U.S.C. § 660*
  - Heading: **CHAPTER 1-HOMELAND SECURITY ORGANIZATION > SUBCHAPTER XVIII-CYBERSECURITY AND INFRASTRUCTURE SECURITY AGENCY > Part A-Cybersecurity and Infrastructure Security**

