### Question
Can you define what major system means?


### Answer
**Major system** is defined as the following in *50 U.S.C. § 403*:

> given such term in section 109 of title 41.

#### Citation:
  - *50 U.S.C. § 403*
  - Heading: **CHAPTER 15-NATIONAL SECURITY > SUBCHAPTER I-COORDINATION FOR NATIONAL SECURITY**

