Washington, DC [RenewableEnergyAccess.com] The U.S. Postal Service was honored earlier this week with a 2006 Closing the Circle (CTC) Award for its use of biodiesel fuel to reduce consumption of petroleum. The agency also received a CTC Honorable Mention for its total waste management program. The awards were bestowed by the Office of the Federal Environmental Executive at a ceremony at the White House. The CTC Awards recognize outstanding achievements of federal employees and their facilities for efforts that result in significant contributions to environmental stewardship.