### Question
How does AIR COMMERCE AND SAFETY define essential airport facility?


### Answer
Under *49 U.S.C. § 41744*, **essential airport facility** is defined as:

> a large hub airport in the contiguous 48 States at which one air carrier has more than 60 percent of the total annual enplanements at that airport

#### Citation:
  - *49 U.S.C. § 41744*
  - Heading: **SUBTITLE VII-AVIATION PROGRAMS > PART A-AIR COMMERCE AND SAFETY > subpart ii-economic regulation > CHAPTER 417-OPERATIONS OF CARRIERS > SUBCHAPTER II-SMALL COMMUNITY AIR SERVICE**

