As organizations dedicated to strengthening workplace protections and promoting economic security for working families, we write to urge you to co-sponsor the Part-Time Worker Bill of Rights Act in the 117th Congress. Throughout the COVID-19 pandemic, part-time workers—who are far more likely than full-time workers to be required to report to work in person—have often had to put their health at risk for jobs that leave them with volatile hours, unstable paychecks, and few benefits or opportunities to advance. The Part-Time Worker Bill of Rights Act will help ensure that part-time workers have the pay, hours, and benefits they need to support themselves and their families.