This pack includes 166 jerseys for non-playable and generic North American teams. It has the U Sports, ACAC, NCDC and all the bantam, midget, jr B, senior, etc. teams in the game. Only jerseys, no helmets. These are not meant to be 100% faithful, but they're realistic.
You can get it here:
NA non-playable and generic teams pack
Combined with JerryJeff's CJHL, USHL and NAHL packs and CM_Balkoth's NCAA pack, I think it pretty much covers every non-playable team in North America.