Roger Warren was convicted of nine counts of second-degree murder in 1995.
He was eligible for day parole in October 2010 and full parole last October, but didn't apply.
Warren, who is 70, is serving his sentence at a prison in British Columbia.
The Parole Board of Canada's Pacific region office says his day parole hearing will be held this spring, perhaps in June.
Warren confessed to setting a bomb that killed nine miners who had crossed a picket line at the mine owned by Royal Oak Mines.