mainline route
Defined in 1 dictionary — U.S. Code
United States Code
39 U.S.C. § 5402 — in this section
the term “mainline route” means a city pair in which a mainline carrier is tendered nonpriority bypass mail;
Public-domain · open source
Defined in 1 dictionary — U.S. Code
39 U.S.C. § 5402 — in this section
the term “mainline route” means a city pair in which a mainline carrier is tendered nonpriority bypass mail;