(1) The addresses to which a carrier delivers mail. In common usage, carrier route includes city routes, rural routes, highway contract routes, Post Office Box sections, and general delivery units. (2) A presort level in which all pieces in the bundle or container are addressed for delivery to the same city route, rural route, highway contract route, Post Office Box section, or general delivery unit. (3) A price category available for some mail classes or products prepared at a carrier route presort level.
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