Full or 30

[Nevadaref]

Here is what I ask when I am part of a crew:

2-man crew: Umpire keeps track of how many 30s the home team has used; Referee does the same for the visiting team. They can then share that info as needed. "Hey partner, white is now out of 30s."

3-man crew: U1 keeps track of the 30s for the home team; U2 tracks the 30s for the visitor; Referee tracks the fulls for both teams.