The United States Congress has yet to pass any of the proposed appropriations that would fund a massive electrification drive by the U.S. Postal Service. Nonetheless, the post office is moving ahead with a test program in Washington, D.C. that will see some of the ubiquitous white boxes be converted to battery power.
Us Post Office
A month ago Rep. Jose E. Serrano (D-NY) introduced a bill in the U.S. house of representatives that if passed would provide up to $2 billion to the United States Postal Service (USPS) for vehicle electrification. The money would be used to convert up to 15 percent of the agency's 142,000 vehicle fleet to plug-in capability.
USPS Long Life Vehicle - Wikimedia Commons