USPS SERVES US Act

This bill changes how the U.S. Postal Service (USPS) can adjust rates, limiting annual increases to once per year and tying rate changes to the Consumer Price Index minus 0.5%. It introduces new sanctions for USPS service failures, allowing the Postal Regulatory Commission to reduce rate adjustment authority if USPS misses service targets for over a year without a credible plan. The bill creates an Office of the Customer Advocate within the Postal Regulatory Commission to represent public interests in proceedings. It also improves complaint processes for mailers and requires an independent model for estimating mail volume demand, separate from USPS-developed models.