ICCF rule for analyzing position with another human I do know for certain that on ICCF engines are allowed, but the question is whether analyzing the position with a human is allowed? I know that on chess.com if you let someone play on your profile you will get banned. The reason is that if it's allowed I am planning to post a question regarding my current position on a game on the ICCF.
Yes, it is legal. 

ICCF: Says nothing about it, or assistance of any kind, and you can even use computers legally. Here are their rules.

USCF: "3. You may consult chess books and periodicals but not other players." Here are their rules.

With regards to the ICCF rules, my guess is that they just decided it was too hard to police computer used, so they just allow it. Books have always been permitted. Human assistance also.