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The United States Golf Association has compiled a list of driving clubs that do not conform with its test adopted in October of 1998 and modified in January of 2004 measuring spring-like effect. These clubs are prohibited from use in any round of golf in the United States and Mexico conducted under USGA Rules, including those rounds played for posting handicaps.
The following list is provided on a weekly basis to the PGA Tour, the LPGA Tour, the Champions Tour, and the Nationwide Tour. It is maintained and updated each Monday for public examination on the USGA web site and will remain posted until further notice.
The clubs are listed in alphabetical order by manufacturer. In using this list, please pay close attention to the "Identification Markings" column. This column details the exact markings on the sole, toe, and/or heel (if any) of each club listed. You can view an image of the club's sole markings by clicking on the "View Photo" link in the table. When multiple lofts are listed for a product name, only one loft will be shown in the image. If the markings do not match exactly, a club should not be deemed non-conforming solely on the basis of this list.
Since inception of the spring-like effect standard, the USGA has examined thousands of golf clubs to determine compliance with its spring-like effect standard. Please note that spring-like effect is one of several criteria considered in determining whether or not a driver conforms to the Rules.
For those rounds played in locations other than the U.S., Mexico, Canada or under R&A Rules, please click here to access the R&A List of Clubs Contrary to the Driving Club Condition of Competition.
Questions about this list or other equipment-related issues may be directed to the USGA Technical Department at (908) 234-2300.
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