Issue link: http://itf.uberflip.com/i/428396
3 • The other lines of the court shall be between 1 inch (2.5 cm) and 2 inches (5 cm) wide, except that the baselines may be up to 4 inches (10 cm) wide. All court measurements shall be made to the outside of the lines and all lines of the court shall be of the same colour clearly contrasting with the colour of the surface. No advertising is allowed on the court, net, strap, band, net posts or singles sticks except as provided in Appendix IV. In addition to the court described above, the court designated as "Red" and the court designated as "Orange" in Appendix VII can be used for 10 and under tennis competition. Note: Guidelines for minimum distances between the baseline and backstops and between the sidelines and sidestops can be found in Appendix IX. 2. PERMANENT FIXTURES The permanent fixtures of the court include the backstops and sidestops, the spectators, the stands and seats for spectators, all other fixtures around and above the court, the chair umpire, line umpires, net umpire and ball persons when in their recognised positions. In a singles match played with a doubles net and singles sticks, the net posts and the part of the net outside the singles sticks are permanent fixtures and are not considered as net posts or part of the net. 3. THE BALL Balls, which are approved for play under the Rules of Tennis, must comply with the specifications in Appendix I. The International Tennis Federation shall rule on the question of whether any ball or prototype complies with Appendix I or is otherwise approved, or not approved, for play. 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 (see Appendix X). The event organisers must announce in advance of the event: a. The number of balls for play (2, 3, 4 or 6). b. The ball change policy, if any. Ball changes, if any, can be made either: i. After an agreed odd number of games, in which case, the first ball change in the match shall take place two games earlier than for the rest of the match, to make allowance for the warm-up. A tie-break game counts as one game for