1) If a ball is obviously out, you still are expected to call “out” and give the "out" hand signal.

2) Line judges should make wrong server and player out of position calls immediately when they occur.

3) The sideline judge is responsible for making sideline calls on the assigned sideline and service foot faults associated with the imaginary extension of that sideline.

4) A delayed line call can raise suspicion of a line judge’s reliability.

5) When six line judges are used, the sideline judges are responsible for making line calls on their side of the net. However, each should watch the entire length of the sideline (baseline to baseline) in case the view of the sideline judge on the opposite end is blocked.

6) Which line judge is responsible for the centerline on the serve?

7) There are no coaching or out of position hand signals used by line judges.

8) When can a line judge replacement occur?

9) Sideline judges should call "foot fault" if the player makes contact with the sideline of the non-volley zone while or immediately after volleying the ball.

10) What would a blocked view signal from a line judge look like?

11) Line judges should immediately raise and wave their hand, if necessary, to get the referee's attention when they clearly see other faults (e.g. double bounces, player hit by ball, player touching the net system while the ball is live).

12) It is a fault if a wheelchair front wheel is touching the baseline or court surface when the ball is hit to make the serve. The baseline judge shall call "fault" and identify which wheel touched.

13) Line judges may solicit opinions from players to determine a call.

14) Overruled line calls are rare if the line judge is following the standards and procedures. But, if an overrule occurs, the line judge should forget it and continue to make calls as they see them.

15) If requested by the referee, line judges can assist the referee with the following calls:

16) If a line judge notices a wrong server, wrong receiver, or a player out of position, the line judge should raise their hand over their head to get the referee's attention at the end of the rally.

17) Line judges are allowed to check their mobile devices throughout the match as long as the phone does not ring.

18) As soon as your spouse qualifies for the Gold Medal match, you should volunteer to be one of the line judges.

19) During the serve, a foot fault occurs when:

20) If a line judge is challenged by a player, he/she should:

21) In a match with line judges, what line(s) are the players responsible for calling on the serve?

22) When a line judge notices coaching by a spectator other than during time-outs or between games, the line judge should extend their arms upward in a "V" motion.

23) In the picture, the server's left foot is touching the baseline when the server is starting his service motion. If he lifts his foot off the baseline just before serve contact, should the line judge call a fault?

24) What is the best positioning of a line judge to view their assigned line?

25) When the ball lands, the picture above indicates the ball has bounced:

26) A line judge repeatedly sliding one hand across the palm of their hand indicates what to the referee?

27) As a line judge, when you cannot clearly see if a ball lands “in” or “out,” you should:

28) During time-outs and in between games, it is acceptable for line judges to converse about non-game related issues with players.

29) When the ball lands, the picture above indicates the ball has bounced:

30) If a line judge makes an "out" line call that ends the rally, the referee may immediately overrule the line judge's call (without an appeal from a player) if the referee clearly saw that the ball landed "in".

31) It is okay to carry on a conversation with the person seated next to you, as long as it doesn’t distract you from your line judging duties.

32) Line Judges will give an "in" signal only at the end of a rally when the ball lands in the court close to the line. The "in" signal can be made immediately.

33) At the beginning of each game and after time-outs and other breaks in the game, the referee will check the readiness of the officiating team and receive a ready signal (raised hand) from each member.

34) At the end of a match, line judges should not leave their posts until released by the referee.

35) During time-outs, line judges are allowed to quickly check their cell phones.

36) For each ball that lands out of bounds, the line judge for that designated line should:

37) A referee may consult with a line judge in the case of a potential double bounce call.

38) Since line judges are not the match referee, it is okay to comment or react to a play during the game.

39) The line judge shown above is signaling:

40) In general, line judges are used for what matches: