Each record in the 1989 CCS contains the date of the observation , the 5-Digit ZIP Code in which the route is located , the route type , 20 the number of pieces ( by subclass and by shape ) per stop , the number of possible deliveries and actual deliveries per stop , and the stop type ( single delivery residential , multi-delivery residential , and business-and-mixed ) .
The 1989 CCS contains information about mail delivery for only 45 states .