Actually, no.
Until there is a contract IN YOUR HAND and you're booked, NO nudity should be involved with the audition process. Ever. It's against AEA (theater), SAG-AFTRA (film/tv), every union essentially forbids it, the CSA (casting society of america- aka the casting directors) wouldn't dream of allowing it.
What typically occurs is a body check of some kind. Which, incidentally, happened at the beginning of the process. You go in with a bikini and they check you front, both profiles and back. That way they see the essentials but no graphic details are necessary. Your bits really aren't THAT important, all things considered, as most are edited out in the final product anyway (if you ever pay close attention, you usually see top half of backside, side/top of chest shots but no full-on completely nude shots unless it's the director's cut/unrated version).