Automobiles. License plates Colorado Revenue Department plans for five year auto license tag starting in 1977. Post D 3, 1975 p.38 State Revenue director Joe Dolan plans to abandon reflector plates in favor of cheaper ones. RMN Mr 6, 1976 p.5,22 3-M Company puts pressure to change State Revenue director Joe Dolan's license plate plan. Post Mr 7, 1976 p.25 Personalized plates popular. Post Ap 28, 1976 p.2 0