V. PERSONNEL 19)  Complete a scorecard in accordance with the approved on-court procedures. Fol - lowing the completion of a match, the scorecards or printouts are to be finalized  and distributed to appropriate ATP tournament and/or media personnel. Maintain  the ATP Point Penalty Card in accordance with the approved on-court proce - dures. 20)  Determine if a court continues to be fit for play. If a change in condition occurs  during a match that the Chair Umpire considers sufficient to make the court unfit  for play or if weather conditions require stoppage of play, he should stop play and  immediately notify the Supervisor.  21)  Following the conclusion of the match, complete and give to the Supervisor, the  Post Match Review form including all actions taken under the Code during the  match. If required by the Supervisor, in addition to the brief summary of the vi - olation made on the Point Penalty Card, the Chair Umpire shall write a detailed  statement of the incident. All reports shall be signed, dated and delivered to the  Supervisor. 22)  Chair umpire responsibilities to include primary responsibility to call nets or  throughs, unless otherwise assigned. 23)  Chair umpires must promptly and accurately score matches using the handheld  or other method provided by ATP. In addition, Chair Umpires agree not to, and  shall not authorize or assist any third party to, disseminate, transmit, publish or  release any match related data or information to or for any third party without the  express written consent of ATP. Further, each Chair Umpire agrees that any and  all work or data he/she collects or creates in connection with any match shall con - stitute a “work made for hire” and any and all rights attributable to such work shall  be retained by, or if necessary automatically assigned to, ATP and its members. E. Clothing - ATP Tour 5.08 Line Umpire  A.Assignment and Designation Process The officiating uniform provided by ATP must be worn. No other commercial branding  may be applied to the uniform without prior approval from ATP. Officials required to support the tournament are as follows: Unless otherwise approved by ATP, the following are required: A minimum of sev - en (7) Line Umpires must be provided per main draw match. A minimum of five  (5) Line Umpires per qualifying match must be provided. Tournaments must hire officials as specified below: 1) ATP Tour Tournaments  2) ATP Challenger Tour Tournaments (See Challenger Addendum, page 397) For 50-90 Category events, a minimum of three (3) Line Umpires shall be provid - ed for every qualifying match and also every main draw match up until the quar terfinal. From the quarterfinals on, a minimum of five (5) Line Umpires shall be  provided. For 100-125 Category events, a minimum of five (5) Line Umpires shall  be provided for every main draw match up until the semi-final. From the semi-final  80 81 B.General  on, a minimum of seven (7) Line Umpires shall be provided. The qualifying com - petition shall have a minimum of three (3) Line Umpires per match. V. PERSONNEL C.Clothing D.Responsibilities Line umpires are assigned by the Chief of Umpires and are responsible for calling  their assigned lines according to ATP rules under the direct on-court supervision of  the Chair Umpire. Clothing provided by the tournament for Line Umpires shall not be solid white, yellow  or other colors that may interfere with the vision of the players, unless otherwise ap - proved by ATP. It is recommended that dark-colored clothing be avoided for outdoor  tournaments played in high temperatures. Clothing should not be identical to clothing  provided to the ball persons. 1)  Carry out all duties in accordance with the approved procedures of ATP. 2)  Not catch balls or hold towels for a player. 3)  Not leave the court without permission of the Chair Umpire. 4)  Dress uniformly with other Line Umpires as prescribed by the tournament and/or  ATP. 5)  Sit erect with both feet on the ground with arms resting on his or her legs. 6)  Concentrate on the assigned line; conversation with spectators or others is to be  avoided. 7)  Be accountable to the Chair Umpire only and have no discussions with the play - ers. A player’s questions must always be referred to the Chair Umpire. However,  a Line Umpire may answer a reasonably precise question if it relates to a call,  especially foot faults, unless that call has been overruled. 8)  Move away from the on-court chair if necessary to get the best view possible of  the assigned line. 9)  Make all calls as quickly as possible, maintaining consistency and accuracy. On  very close calls a fraction of a second’s hesitation is recommended to make sure  that the call is correct. 10)  Never call a ball “Out” until it actually hits out or it hits a permanent fixture. 11)  Make “Out,” “Fault,” “Net” and “Foot Fault” calls loudly and crisply followed by the  appropriate hand signal. Foot faults are never called until the serve is struck. 12)  Do not make a call for a “good” ball. However, whenever there is a close call on a  good ball, the “good” ball hand signals should be given quickly to confirm the call. 13)  When there is an erroneous call, immediately call “Correction” so that the Chair  Umpire and the players are aware of the error. Then, make the corrected call. 14)  Do not give an opinion on a call that is not his or her responsibility. 15)  Remain silent if the Chair Umpire overrules a call. Direct player inquiries to the  Chair Umpire.