As of the 14th April 2020 the World Handicapping System comes into effect in New Zealand
The World Handicap System
A modern handicap system for all golfers everywhere
The World Handicap System (WHS) was launched in January 2020 and will provide golfers with a unified and more inclusive handicapping system for the first time.
Though many countries adopted the new system in January, the system will go live in other parts of the world throughout the year to accommodate different implementation plans and variations in the golfing calendar.
Developed by The R&A and USGA in close coordination with existing handicapping authorities, the WHS will provide all golfers with a consistent measure of playing ability, with handicaps calculated in the same way wherever they are in the world.
A key objective of the initiative was to develop a modern system, enabling as many golfers as possible to obtain and maintain a Handicap Index. Golfers will be able to transport their Handicap Index globally and compete or play a casual round with players from other regions on a fair basis. It will also indicate the score a golfer is reasonably capable of achieving the next time they go out to play.
About the Rules of Handicapping
The Rules of Handicapping content is intended for those who administer the game and who need to answer the variety of questions that can arise in relation to handicapping. Some of the Rules contain discretionary items that will have been selected by your Authorised (National) Association. For details of the selections that apply in your country, contact your National Association.
More information can be found here on the R&A official website