FM 966 would be canceled .
FM 966 would be combined with FM 150 on May 25 , 1955 , and that would be changed to RM 150 on October 1 , 1956 .
FM 966 would be canceled and combined with FM 150 on May 25 , 1955 , and that would be changed to RM 150 on October 1 , 1956 .