You mean "If you're capable of using only a standard action during your turn, you can charge as a standard action"?
I suspect he gets that from the PHB, where it says "If you are able to take only a standard action or a move action on your turn, you can still charge, but you are only allowed to move up to your speed (instead of up to double your speed). You can’t use this option unless you are restricted to taking only a standard action or move action on your turn."
You've always been able to Charge in the Surprise Round in 3.5. In fact, in the Surprise Round, you can even Ready a Charge - something you can't normally do unless you're a zombie!
-Hyp.