From the Highlights: "Our objective was to assess the U.S. Postal Service's management of its employees' use of novel coronavirus disease (COVID-19) leave under the Families First Coronavirus Response Act (FFCRA). In March 2020, the president declared COVID-19 pandemic to be a national emergency and signed the FFCRA into law, creating two new types of leave:  Up to 80 hours of emergency paid sick leave for specific qualifying reasons.  Public health emergency leave, which amended the Family Medical Leave Act (FMLA) to allow employees to take up to 12 weeks of leave for an additional qualifying reason related to the closure of a child's school or place of care. The FFCRA was effective from April 1 through December 31, 2020. Any leave taken prior to April 1, 2020, remained subject to Postal Service rules in place at that time. The legislation was intended to ensure that workers were not forced to choose between their paychecks and public health measures."
United States Postal Service. Office of Inspector General, Report Number 21-032-R21