^^ incorrect!!
canadian cpl + RT gives u WPC RTR(P) not (C).
and max validity on canada conversion is 5 yrs not 20..
and validity is limited to expiry of canadian rt or cpl whichever expires first.
the cpl and RT in canada both have no expiry BUT the blue booklet on which cpl is stamped has an expiry and wpc counts that as the expiry.
hence u will get rtr(P) for max 5 yrs as blue book (aviation document) is valid for max 5 yrs.