B200drvr,
You are quite wrong.
Under 61.55 OR an approved training program.
Try reading 61.55 first.
Therefore an ATP has privileges under 61.55 to train an SIC. Speak to the FAA. I've completed the necessary training for several pilots, and then sent them to the FAA rep in the UK to get a temporary issued. Oh, and the types I've done that on include the G550, Falcon2000EXEASy, and a selection of Citations.
PSF2J