The CRDA material consists of trainers notes, powerpoint material and videos (which mean nothing without the notes).
The notes do mention handouts, which were supplied a few years ago as CRDA folders for new referees. However these are like the ELRA folders, basically blank and meaningless without the training given.
You should speak to your Society training officer if you want a CRDA in a particular area.
The problem with the latest versions is that each module takes far longer than a standard Society training meeting lasts, and the gap between meetings means they are of little use across more than one meeting. Some of the modules can be cut down to provide good training in certain areas.
There is a second set of material (cant remember the name off hand) designed just for Club Ref's. These were sent to Training Officers and CrefC's (all except CrossRef!)