no difference, same forms except that this time you will check off "open work permit" instead of the normal work permit you usually check off which you applied for in previous times. If I recall correctly, when I did mine, I also included "Statutory Declaration of Common-Law Union". You can have it done at any registry with a charge. I believe the following is the link you need. Good luck. 4 O D+ o6 Z, P' H3 o, x # U/ D) K: a7 b$ g+ _* U' o0 X% Fhttp://www.cic.gc.ca/english/inf ... s/extend-worker.asp