"The Treaty, which his country signed in 1968, was a treaty of commitment and not convenience, he said. The NPT was the world's most successful and most widely adhered to multilateral arms control treaty, with 187 State parties. The collective decision of 174 States, who were party to the Treaty in 1995, to extend it indefinitely, enshrined its values and enhanced its authority and integrity. Without nuclear disarmament, there would be nuclear proliferation. The permanence achieved five years ago was not a permit to retain nuclear weapons forever. In fact, that permanence made the obligation on all States parties to get rid of nuclear weapons and to stay rid of them unending.
.....
He said that Canada would continue to resist any movement to legitimize, de facto or de jure, any new nuclear-weapon State. He urged all States that had not yet done so to join the NPT and the CTBT without further delay and without conditions. He also urged all participants in the Conference on Disarmament to
show flexibility and to agree on a work programme and to commence negotiations on a fissile material cut-off treaty. "



http://www.fas.org/nuke/control/npt/news/20000502-canada2pc.htm

OK, Canada HAS signed the treaty, so they fall under NPT requirements.