### Question
What is the definition of agency?


### Answer
The definition of **agency** is as follows in *22 U.S.C. § 3643*:

> an Executive agency, the United States Postal Service, and the Smithsonian Institution

#### Citation:
  - *22 U.S.C. § 3643*
  - Heading: **CHAPTER 51-PANAMA CANAL > SUBCHAPTER I-ADMINISTRATION AND REGULATIONS > Part 2-Employees > subpart i-panama canal commission personnel**

