---
kind: "section"
citation: "40 C.F.R. § 1065.127"
title: "40"
number: "1065.127"
heading: "Exhaust gas recirculation."
url: "https://uscodex.org/cfr/40/1065.127"
---

# §1065.127. Exhaust gas recirculation.


Use the exhaust gas recirculation (EGR) system installed with the engine or one that represents a typical in-use configuration. This includes any applicable EGR cooling devices.


## Notes

### Authority

Authority: 42 U.S.C. 7401-7671q.

### Source

Source: 70 FR 40516, July 13, 2005, unless otherwise noted.