In separate letters sent Tuesday, Governor Beverly Perdue, D-NC, and Governor Mike Beebe, D-Ark., officially petitioned the U.S. Environmental Protection Agency (EPA) to grant a waiver from the ethanol quotas mandated by the federal Renewable Fuels Standard (RFS). Their requests follow similar pleas from Maryland Governor Martin O’Malley and Delaware Governor Jack Markell made last week.

Governors Perdue and Beebe join a growing list of recent requests to waive the RFS, including calls from 156 U.S. House members, 26 U.S Senators, the United Nations.