Washington, DC – The Postal Regulatory Commission today issued its Advisory Opinion on the U.S. Postal Service proposal to revise service standards for First-Class Package Service (FCPS). (Docket No. N2021-2). The proposal would lengthen service standards by 1 to 2 days for approximately 31.2 percent of FCPS volume and shorten service standards by one day for approximately 4.8 percent of FCPS volume.