When did Postal Unions Give Up The Right to Strike?

Postal unions instead established a binding arbitration process to resolve contract disputes in 1970. This was part of the Postal Reorganization Act, which was passed in response to the Great Postal Strike of 1970.

"...Postal Reorganization Act of 1970, which granted unions the right to negotiate with management over their wages, benefits and working conditions. In lieu of the right to strike, a