I can't seem to find anything authoritative on this topic and have heard quite different things from officials and coaches. Under what circumstances, if any, are coaches allowed to request that a new ball be used? There are restrictions on marking balls for a particular game situation, and an AR stating that a team attempting to swap a ball on 4th down would not be allowed. Beyond that, how should we respond to a request to replace a ball?
Specifically:
1. After a try, can the kicking team request that their "kicking ball" be used for the subsequent kickoff? My understanding is that they should use the same ball for the try that was used on the play that scored a touchdown, but I can't seem to find chapter and verse on that one.
2. Assuming the play didn't end where a new ball should be obtained from the sideline to avoid slowing down the game, can teams send in a new ball whenever they choose? When weather conditions or field conditions lead them to believe the ball should be replaced?
Thanks in advance for any insight.