This from the Regs;

Applications: Occasionally, RFMAs become vacant. District Fish & Wildlife Division offices
list the vacant RFMAs in their areas. Qualified adult residents of Alberta may apply for a
vacant RFMA at those offices. Successful applicants will receive Registered Fur
Management Licences that will authorize them to hunt and trap fur-bearing animals on the
lands described on the licence and also on private lands that they may own or occupy.

The liscence is issued against the area, and must be had before any trapping activity takes place on public lands. Good areas are tough to get.