Q. What is the process by which the Rules of Golf are changed?
A. Since 1952, the Rules of Golf have been published jointly by the USGA and the R&A in Scotland.
The Rules Committees of each ruling body meet separately several times per year and twice per year representatives from both ruling bodies (along with one representative from the Royal Canadian Golf Association) meet as the Joint Rules Committee.
The Decisions on the Rules of Golf book is revised every two years (even numbered years) and the Rules of Golf are revised every four years (leap years).