RFP signal in NCAA mechanics
 

Question:

In NCAA mechanics, does the Referee still signal the ball ready-for-play before every play, or has this been eliminated in situations where the 40-second play clock is running?

I realize the RFP is still used to start the 25-second play clock following a clock stoppage in certain situations, but I'm asking specifically about situations where the 40-second play clock is in use.

If the 40-second clock is used, the R does not need to give a RFP signal in most cases. The exception would be if the 40-second clock starts on the R's signal (after a 10-second runoff, injury to Team B, and a few others).

The R will give a 'start clock' signal if necessary (run OOB, first down, etc), which may or may not be accompanied by a whistle (check local listings).

The RFP signal is still used when the 25-second clock is in use.

Would you give team A a delay of game foul if they attempt to play the ball any sooner without the signal?

Yes. Rule 4-1-4.

Then how are they to know whether it's ready for play?

By rule the ball is ready for play when the umpire the places the ball and steps away.