I'm having a hard time understanding what you're asking. The designation registered psychiatric nurse only exists in Western Canada so your license is useless elsewhere in Canada. In order to become licensed in any other province you must apply for licensure through the provincial regulatory body for nurses and see what they say. Most likely you will have to return to school to upgrade your skills as comparable to that of an RN. In Central and Eastern Canada both LPNs and RNs work in psych nursing at all different facilities - hospitals, psych hospitals, corrections, etc.