Publication 28 - Postal Addressing Standards > 2 Postal Addressing Standards > 25 Highway Contract Route Addresses > 254 Additional Designations
There should be no additional designations, such as town or street names, on the Delivery Address Line of highway contract route addresses. Street names used together with route and box numbers can create potential matching difficulty. Mailers are encouraged to use only one style of addressing. If secondary name information is used, however, place it above the Delivery Address Line.
