Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Find the Latest Information on the Coronavirus/COVID-19 at FTA's Coronavirus landing page.

United States Department of Transportation United States Department of Transportation

Reduced Engine Idle Load (REIL) System for Conventional Propulsion Diesel & CNG Buses: Development, Validation & Market Study Program Final Report (Report 0157)

The Center for Transportation and the Environment partnered with New Flyer, BAE Systems and MARTA to design, build, test and evaluate the technology and market readiness of a Reduced Engine Idle Load (REIL) system for diesel and CNG (compressed natural gas) transit buses. A REIL system replaces traditional mechanically-driven accessories with electric accessories to increase fuel efficiency, reduce emissions, and simplify maintenance on conventional propulsion transit bus fleets. This project received funding under FTA’s Bus Efficiency Enhancements Research and Demonstration (BEERD) Program.

Last updated: Thursday, February 27, 2020
DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact FTAWebAccessibility@dot.gov.