Equipment Overview

The USGA tests balls, clubs and other equipment for conformity to the Rules of Golf. The purpose of the rules is to protect golf’s best traditions, to prevent an over-reliance on technological advances and to ensure that skill remains the dominant element of success for golfers everywhere. Public tours of the USGA Research and Test Center in Far Hills, N.J., may be offered to visitors as testing allows, Tuesday - Friday at 1 p.m. between April 1st and November 1st and is subject to change at any time.

Guide to the Rules on Clubs and Balls
This Guide is designed to help competition officials interpret the rules relating to the design and manufacture of golf clubs and balls, as set out in Appendices II and III of the Rules of Golf. The Guide is currently being updated to reflect any changes in the 2012-2015 Rules of Golf and the next version of the Guide will be available in an online-only format in the first quarter of 2012.

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Research Studies
The USGA conducts world-class research on a range of equipment-related issues and shares its findings with the golf industry and public.

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Getting Equipment Tested by the USGA
Equipment designers and manufacturers must submit equipment to the USGA for evaluation and to receive an official conformance determination.

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Grooves Resource Center
The USGA has made several resources available to assist expert amateurs in complying with amended golf club groove regulations, which as of January 1, 2014, are a Condition of Competition at all USGA amateur championships and qualifying events.

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Conforming Club & Ball Lists
Does your equipment conform?
Distance-Measuring Devices Explained
When can you use a Distance-Measuring Device and what devices are permitted?
Equipment FAQ
Get the answers.
Partner Links
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The USGA and Chevron have committed to using the game of golf to encourage students in science, technology, engineering and math (STEM) disciplines. This commitment has led to the creation of extensive golf-focused STEM teaching tools, and has resulted in charitable contributions to support golf-related programs through Eagles for Education™

At U.S. Open Championships the Chevron STEM ZONE™ is an interactive experience highlighting the science and math behind the game of golf through a variety of hands-on exhibits and experiments.

The partnership has also produced educational materials such as the Science of Golf video series and a nationally-distributed newspaper insert which are provided to teachers as tools to enhance existing curriculum in schools. These lessons teach the science behind the USGA’s equipment testing, handicapping, and agronomy efforts.

For more interactive experiences featuring golf-focused STEM lessons, visit the partnership homepage.

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Rolex has been a longtime supporter of the USGA and salutes the sportsmanship and great traditions unique to the game. This support includes the Rules of Golf where Rolex has partnered with the USGA to ensure golfers understand and appreciate the game.

As the official timekeeper of the USGA and its championships, they also provide clocks throughout host sites for spectator convenience.

For more information on Rolex and their celebration of the game, visit the Rolex and Golf homepage.

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IBM has partnered with the USGA to bring the same technology, expertise, and innovation it provides to businesses all over the world to the USGA and golf's national championship.

IBM provides the information technology to develop and host the U.S. Open’s official website,, as well as the mobile apps and scoring systems for the three U.S. Open championships. These real-time technology solutions provide an enhanced experience for fans following the championship onsite and online.

For more information on IBM and the technology that powers the U.S. Open and businesses worldwide, visit

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Lexus is committed to partnering with the USGA to deliver a best-in-class experience for the world’s best golfers by providing a fleet of courtesy luxury vehicles for all USGA Championships.

At each U.S. Open, Women’s Open and Senior Open, Lexus provides spectators with access to unique experiences ranging from the opportunity to have a picture taken with both the U.S. Open and U.S. Women’s Open trophies to autograph signings with legendary Lexus Golf Ambassadors in the Lexus Performance Drive Pavilion.

For more information on Lexus, visit

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American Express

Together, American Express and the USGA have been providing world-class service to golf fans since 2006. By creating interactive U.S. Open experiences both onsite and online, American Express enhances the USGA’s effort to make the game more accessible and enjoyable for fans.

For more information on American Express visit

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