federal-aid primary highway system
 

* 1.The Federal-Aid Highway System of rural arterials and their extensions into or through urban areas in existence on June 1, 1991, as described in 23 U.S.C. 103b) in effect at that time. (23CFR658)

English Related Words* 12-tone system

* abo blood group system

* abo system

* absolute stability of a system

* absolute system

* absolute system of electrical units

* absolutely stable system

* accelerated cost recovery system (acrs)

* accentual system

* access to announcing system via ic user stations

* accounting system

* activating system

* adaptive control system

* adaptive system

* adjustable peg system