How to Use The List of Conforming Driver Heads
The List of Conforming Driver Heads identifies the models and lofts of all driver
heads that have been submitted for evaluation to The United States Golf Association
and/or R&A and have been determined to conform to the Rules of Golf. It is updated
by 08:00 (EST) every Monday for USGA jurisdictions and 00:01 (GMT) for R&A jurisdictions.
Driver heads are listed in alphabetical order by manufacturer or by product name,
depending on which PDF list you have printed. Each model is listed as a separate
entry with corresponding lofts and identification markings that are essential to
determining whether the driver listed is the same as the driver in question. There
are sometimes only subtle differences in the markings differentiating two different
models of a driver head. For example, one model may have a degree symbol (conforming)
and a similar model could be without a degree symbol (USGA non-conforming or R&A
non-conforming in 2008), and those differences vary from manufacturer to manufacturer.
As a result, if all markings of the clubhead do not match exactly to a club that
is in question, it may be a different model and you should check the Non-Conforming
Driver List (R&A Non-Conforming 2008) to determine whether it appears on that
List. If you have any question regarding the conformance status of any club, please
contact the USGA or R&A for further assistance.
A link to an image of each driver included on this list is available through the
searchable online database by clicking the 'View Photo' link. Please note that only
the image of the driver head's sole is provided. Therefore, it should only be used
for reference purposes. There are often models that have identical sole markings
but have different face, crown, toe and/or heel markings. The sole markings alone
are not enough to conclude that the clubhead in question is the model listed.
Administration of the List