 While the strike ended without any concessions from the Federal government, it did ultimately allow for postal worker unions and the government to negotiate a contract which gave the unions most of what they wanted, as well as the signing of the Postal Reorganization Act by President Richard Nixon on August 12, 1970.The Act replaced the cabinet-level Post Office Department with a new federal agency, the United States Postal Service, and took effect on July 1, 1971.The United States Postal Service employs 633,188 workers, making it the third-largest civilian employer in the United States behind the federal government and Walmart.