### Question
How is the term maximum efficient rate of production defined?


### Answer
The term **maximum efficient rate of production** is defined in *42 U.S.C. § 6214* as the following:

> the maximum rate of production of crude oil or natural gas, or both, which may be sustained without loss of ultimate recovery of crude oil or natural gas, or both, under sound engineering and economic principles

#### Citation:
  - *42 U.S.C. § 6214*
  - Heading: **CHAPTER 77-ENERGY CONSERVATION > SUBCHAPTER I-DOMESTIC SUPPLY AVAILABILITY > Part A-Domestic Supply**

