### Question
How does OTHER TECHNOLOGY BASE POLICIES AND PROGRAMS define subsystem?


### Answer
Under *10 U.S.C. § 4863*, **subsystem** is defined as:

> a functional grouping of items that combine to perform a major function within an end item, such as electrical power, attitude control, and propulsion

#### Citation:
  - *10 U.S.C. § 4863*
  - Heading: **Subtitle A-General Military Law > PART V-ACQUISITION > Subpart I-Defense Industrial Base > CHAPTER 385-OTHER TECHNOLOGY BASE POLICIES AND PROGRAMS > SUBCHAPTER II-LIMITATIONS ON PROCUREMENT OF CERTAIN ITEMS FROM FOREIGN SOURCES**

