The 1966 CFL season was the Canadian Football League's ninth season since the 1958 merger of the Interprovincial Rugby Football Union and the Western Interprovincial Football Union to create a national league.
The league started to legalize unlimited blocking on rushing plays and introduced their new goose-necked goal posts.
The league rewrote its rule book and reduced it in size.
The Canadian Rugby Union, owners of the trophy, granted trusteeship of the Grey Cup to the Canadian Football League in exchange for annual financial support for amateur football.
[1] Note: GP = Games Played, W = Wins, L = Losses, T = Ties, PF = Points For, PA = Points Against, Pts = Points Note: All dates in 1966 [2] 54th Annual Grey Cup Game: Empire Stadium – Vancouver, British Columbia