b. Chaperones Provided by the Tournament 

Each Tournament, when selected to host testing of players, is obligated to provide, at its own cost, adult female staff members and/or volunteers who can assist the Official Anti-Doping Personnel and Supervisor with the notification and observation of players selected for testing. The Tournament shall be notified of the chaperone schedule at least seven (7) days prior to the start of the Tournament. 

## 4. Ball Persons 

It is recommended that a coordinator be appointed to recruit and assign Ball Persons. There shall be a minimum of six (6) ball persons per match in the Main Draw and Qualifying. Ball persons may not wear any predominantly white, yellow, or other light color clothing that may interfere with the players’ vision, unless otherwise approved by the WTA. Ball persons’ uniforms should not be identical to the Line Umpires’ uniforms. 

## 5. Balls 

a. Ball Type and Specifications 

i. ITF-approved Type 2 Regular Duty balls from the WTA approved ball list are to be used at all WTA Tournaments unless otherwise approved by the WTA. At least twelve (12) weeks prior to the start of its Main Draw, each Tournament must confirm with the WTA the ball it intends to use. Failure to comply may result in a Tournament Standards Violation and/or other sanctions. 

High-altitude balls are not to be used unless conditions require, and such use must be approved by the WTA and must be stated on the Tournament Fact Sheet. 

ii. WTA Tournaments which are played the week before a Grand Slam are required to use the same ball (brand and commercial denomination) as that Grand Slam. 

iii. Pressurized balls only will be used on the WTA. 

b. Number and Procedure for Rotation during All Match Play 

At all Tournaments for all matches in both Qualifying Singles and Main Draw singles and doubles, six (6) balls shall be used and changed after the first seven (7) games and thereafter every nine (9) games. 

