X. EXHIBITS X. EXHIBITS A limited number of toilet/change of attire breaks may also be allowed, if this  is announced in advance of the event. d. Event organizers may allow a rest period of a maximum of ten (10) minutes if  this is announced in advance of the event. This rest period can be taken after  the 3rd set in a best of 5 sets match, or after the 2nd set in a best of 3 sets  match. e. The warm-up time shall be a maximum of five (5) minutes, unless otherwise  decided by the event organizers. 30. COACHING Coaching is considered to be communication, advice or instruction of any kind and by  any means to a player. In team events where there is a team captain sitting on-court, the team captain may  coach the player(s) during a set break and when the players change ends at the end  of a game, but not when the players change ends after the first game of each set and  not during a tie-break game. In all other matches, coaching is not allowed.  Case 1:  Is a player allowed to be coached, if the coaching is given  by signals in a discreet way? Decision:  No.  Case 2:  Is a player allowed to receive coaching when play is sus- pended? Decision:  Yes.  Case 3:  Is a player allowed to receive on-court coaching during a  match? 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 initia - tive, 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 (see Appendix X). RULES OF WHEELCHAIR TENNIS The game of wheelchair tennis follows the ITF Rules of Tennis with the following  exceptions. a. The Two Bounce Rule The wheelchair tennis player is allowed two bounces of the ball. The player  must return the ball before it hits the ground a third time. The second bounce  can be either in or out of the court boundaries. 274 275 b. The Wheelchair c. The Service The wheelchair is considered part of the body and all applicable rules, which  apply to a player’s body, shall apply to the wheelchair. The service shall be delivered in the following manner.  I.  Immediately before commencing the service, the server shall be in a sta - tionary position. The server shall then be allowed one push before striking  the ball.  ii. The server shall throughout the delivery of the service not touch with any  wheel, any area other than that behind the baseline within the imaginary  extension of the center mark and sideline. iii. If conventional methods for the service are physically impossible for a  quadriplegic player, then the player or an individual may drop the ball for  such a player. However, the same method of serving must be used each  time. d. Player Loses Point A player loses a point if: i. The player fails to return the ball before it has touched the ground three  times; or  ii. Subject to rule f) below the player uses any part of their feet or lower  extremities as brakes or as stabilizers while delivering service, stroking a  ball, turning or stopping against the ground or against any wheel while the  ball is in play; or  iii. The player fails to keep one buttock in contact with their wheelchair seat  when contacting the ball. e. The Wheelchair Wheelchairs used in all competitions played under the Rules of Wheelchair  Tennis must comply with the following specifications: i. The wheelchair may be constructed of any material provided that such  material is non-reflective and does not constitute a hindrance to the op - ponent. ii. Wheels may have a single pushrim only. No changes to the wheelchair  that afford the player a mechanical advantage are permitted, such as  levers or gears. During normal play, wheels shall not leave permanent  marks on, or otherwise damage, the court surface. iii. Subject to Rule e(v), players shall use only the wheels (including  pushrims) to propel the wheelchair. No steering, braking or gearing or  other device that may assist operation of the wheelchair, including energy  storage systems, is permitted. iv. The height of the seat (including cushion) shall be fixed and players’ but - tocks shall remain in contact with the seat during the playing of a point.  Strapping may be used to secure the player to the wheelchair. v. Players who meet the requirements of Article 10 of the ITF Wheelchair  Tennis Classification Rules may use a wheelchair powered by electric  motor(s) (a “powered wheelchair”). Powered wheelchairs must not be  able to exceed 15 km/h in any direction and shall be controlled by the  player only. vi. Applications may be made for modifications to the wheelchair for legit - imate medical reasons. All such applications shall be submitted to the  ITF Sport Science & Medicine Commission for approval a minimum of 60  days prior to intended use in an ITF-sanctioned event.