Skip to page content
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.

The latest general information on the Coronavirus (COVID-19) is available on Coronavirus.gov. For FAA-specific COVID-19 resources, please visit faa.gov/coronavirus.
United States Department of TransportationUnited States Department of Transportation

Guidance on Reducing Emissions from Ground Support Equipment GSE and Auxiliary Power Units APUs

Guidance, information, and data on this subject may be found at Voluntary Airport Low Emissions Program (VALE). The documents of particular benefit are the “VALE Technical Report” and the "Final Report for the Inherently Low Emission Airport Vehicle (ILEAV) Pilot Program."

Page last modified: