### Question
How does the law define implementing bill?


### Answer
Under *49 U.S.C. § 48111*, **implementing bill** is defined as:

> only a bill of the Senate which is introduced as provided in subsection (a) with respect to one or more Federal Aviation Administration funding proposals which contain changes in existing laws or new statutory authority required to implement such funding proposal or proposals

#### Citation:
  - *49 U.S.C. § 48111*
  - Heading: **SUBTITLE VII-AVIATION PROGRAMS > PART C-FINANCING > CHAPTER 481-AIRPORT AND AIRWAY TRUST FUND AUTHORIZATIONS**

