EDIT: OOPS! Sorry I misread your post. I believe 110.3(B) would apply. Also take a look at article 11014(A), last sentance. "Terminals for more than one conductor...shall be so identified". I believe as long as your terminals are listed for it, you may land more than one EGC on the terminal.
[This message has been edited by Ryan_J (edited 09-30-2003).]