Issue link: http://itf.uberflip.com/i/428396
30 BALL MARK INSPECTION PROCEDURES 1. Ball mark inspections can only be made on clay courts. 2. A ball mark inspection requested by a player (team) shall be allowed only if the chair umpire cannot determine the call with certainty from his/her chair on either a point-ending shot or when a player (team) stops playing the point during a rally (returns are permitted but then the player must immediately stop). 3. When the chair umpire has decided to make a ball mark inspection, he/she should go down from the chair and make the inspection himself. If he/she does not know where the mark is, he/she can ask the line umpire for help in locating the mark, but then the chair umpire shall inspect it. 4. The original call or overrule will always stand if the line umpire and chair umpire cannot determine the location of the mark or if the mark is unreadable. 5. Once the chair umpire has identified and ruled on a ball mark, this decision is final and not appealable. 6. In clay court tennis the chair umpire should not be too quick to announce the score unless absolutely certain of the call. If in doubt, wait before calling the score to determine whether a ball mark inspection is necessary. 7. In doubles the appealing player must make his/her appeal in such a way that either play stops or the chair umpire stops play. If an appeal is made to the chair umpire then he/she must first determine that the correct appeal procedure was followed. If it was not correct or if it was late, then the chair umpire may determine that the opposing team was deliberately hindered. 8. If a player erases the ball mark before the chair umpire has made a final decision, he/she concedes the call. 9. A player may not cross the net to check a ball mark without being subject to the Unsportsmanlike provision of the Code of Conduct. ELECTRONIC REVIEW PROCEDURES At tournaments where an Electronic Review System is used, the following procedures should be followed for matches on courts where it is used. 1. A request for an Electronic Review of a line call or overrule by a player (team) shall be allowed only on either a point-ending shot or when a player (team) stops playing the point during a rally (returns are permitted but then the player must immediately stop). 2. The chair umpire should decide to use the Electronic Review when there is doubt about the accuracy of the line call or overrule. However, the chair umpire may refuse the Electronic Review if he/she believes that the player is making an unreasonable request or that it was not made in a timely manner. 3. In doubles the appealing player must make his/her appeal in such a way that either play stops or the chair umpire stops play. If an appeal is made to the chair umpire then he/she must first determine that the correct appeal procedure was