WASHINGTON, May 13 (Reuters) - The U.S. House Oversight and Reform Committee on Thursday voted to authorize $8 billion to quickly shift the U.S Postal Service (USPS) to an electric vehicle delivery fleet.

USPS in February awarded a contract to Oshkosh Corp that could be worth $6 billion to build a mix of up to 165,000 gas- and EV-powered delivery vehicles instead of choosing Workhorse Group Inc to build an all-electric fleet. A final decision on EV USPS funding is likely to be part of a broader infrastructure plan under debate by Congress. (Reporting by David Shepardson)