The following provisions govern the notice that must be given in court actions involving a constitutional challenge:
Constitutional Question Act, R.S.B.C. 1996, c. 68
For sample form ("Notice of Constitutional Question"), see McLachlin & Taylor, BC Court Forms, Chapter 5: Other Commencement Process, Form 5F52 (available in most BC Courthouse libraries). This form is also available from the Quicklaw database which is accessible at BC Courthouse Library locations.
The Federal Court and the Supreme Court of Canada require that the Notice of Constitutional Question be served on the attorneys general of all the provinces.