### Question
What does certified engine configuration mean?


### Answer
**Certified engine configuration** has the following meaning in *42 U.S.C. § 16131*:

> a new, rebuilt, or remanufactured engine configuration—


(A) that has been certified or verified by—


(i) the Administrator

#### Citation:
  - *42 U.S.C. § 16131*
  - Heading: **CHAPTER 149-NATIONAL ENERGY POLICY AND PROGRAMS > SUBCHAPTER VII-VEHICLES AND FUELS > Part F-Diesel Emissions Reduction**

