Decision: Sanctioning bodies may apply to the ITF to have on-court coaching allowed. In events where on-court coaching is allowed, designated coaches may enter the court and coach their players under procedures decided by the sanctioning body. 

## 31. PLAYER ANALYSIS TECHNOLOGY 

Player analysis technology, that is approved for play under the Rules of Tennis, must comply with the specifications in Appendix III. 

The International Tennis Federation shall rule on the question of whether any such equipment is approved, or not approved. Such ruling may be taken on its own initiative, or upon application by any party with a bona fide interest therein, including any player, equipment manufacturer or National Association or members thereof. Such rulings and applications shall be made in accordance with the applicable Review and Hearing Procedures of the International Tennis Federation. 

## AMENDMENT TO THE RULES OF TENNIS (Article 28 of the Constitution of ITF Ltd) 

The official and decisive text to the Rules of Tennis shall be for ever in the English language and no alteration or interpretation of such Rules shall be made except at an Annual General Meeting of the Council, nor unless notice of the Resolution embodying such alterations shall have been received by the ITF in accordance with Article 17 and such Resolution or one having the like effect shall be carried by a majority of two-thirds of the votes recorded in respect of the same. 

Any alteration so made shall take effect as from the first day of January following, unless the Meeting shall by the like majority decide otherwise. 

The Board of Directors shall have power, however, to settle all urgent questions of interpretation subject to confirmation at the General Meeting next following. 

This text shall not be altered at any time without the unanimous consent of a General Meeting of the Council. 

## APPENDIX I 

## THE BALL 

For all measurements in Appendix I, SI units shall take precedence. 

a. The ball shall have a uniform outer surface consisting of a fabric cover except for the Stage 3 (Red) foam ball. If there are any seams they shall be stitchless. 

