Named after its sponsor, Senator James J. Walker, this became the most influential American boxing legislation. The New York Senate, by a vote of 30-19, adopted it March 25, 1920. It once again legalized professional boxing in New York state. Its code of boxing rules--originally written by William Gavin, an English boxing promoter--provided the basis for similar law in many other jurisdictions. It also established standard weight divisions.
It is said that the Walker Law was heavily influenced by the rules and weights established for the American Expeditionary Force (AEF) Boxing Tournament of 1919 in England.
See also USA: New York Laws