WASHINGTON, Aug 10 (Reuters) - The United States Postal Service (USPS) said on Tuesday it is proposing to temporarily hike prices for some package shipments for the 2021 peak holiday season. USPS said the rate changes were similar to 2020. The proposed hikes that cover priority mail and other package services will take effect Oct. 3 through Dec. 26 once reviewed by the Postal Regulatory Commission. The USPS faced significant operational issues during the 2020 holiday season as package deliveries jumped. (Reporting by David Shepardson Editing by Chris Reese) Our Standards: The Thomson Reuters Trust Principles.