The United States Golf Association (USGA) and R&A announced jointly that rules for testing golf balls will be changed on Jan. 1, 2020. The governing bodies are trying to stop golfers from hitting the ball further and courses becoming longer.
The announcement was made after many years of discussion, study, and communication between the USGA, R&A, and stakeholders such as golf equipment manufacturers, PGA Tour, PGA of America, and other groups prominent in the world of golf.
In the beginning, USGA and R&A had proposed a Model Local Rule which would have required only elite men to use distance-reducing golf balls. Under the new rules, all players will be required to use the distance-reducing balls.
What I learned from the USGA & R&A decision