[Code of Federal Regulations]
[Title 23, Volume 1]
[Revised as of April 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 23CFR470.111]

[Page 121-122]
 
                           TITLE 23--HIGHWAYS
 
 CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 470--HIGHWAY SYSTEMS--Table of Contents
 
                 Subpart A--Federal-aid Highway Systems
 
Sec. 470.111  Interstate System procedures.

    (a) Proposals for system actions on the Interstate System shall 
include a route description and a statement of justification. Proposals 
shall also include statements regarding coordination with adjoining 
States on State-line connections, with responsible local officials, and 
with officials of areas under Federal jurisdiction.
    (b) Proposals for Interstate or future Interstate designation under 
23 U.S.C. 139(a) or (b), as logical additions or connections, shall 
consider the criteria contained in appendix A of this subpart. For 
designation as a part of the Interstate system, 23 U.S.C. 139(a) 
requires that a highway meet all the standards of a highway on the 
Interstate System, be a logical addition or connection to the Interstate 
System, and have the affirmative recommendation of the State or States 
involved. For designation as a future part of the Interstate System, 23 
U.S.C. 139(b) requires that a highway be a logical addition or 
connection to the Interstate System, have the affirmative recommendation 
of the State or States involved, and have the written agreement of the 
State or States involved that such highway will be constructed

[[Page 122]]

to meet all the standards of a highway on the Interstate System within 
twelve years of the date of the agreement between the FHWA Administrator 
and the State or States involved. Such highways must also be on the 
National Highway System.
    (c) Proposals for Interstate designation under 23 U.S.C. 139(c) 
shall pertain only to Alaska or Puerto Rico. For designation as parts of 
the Interstate System, 23 U.S.C. 139(c) requires that highway segments 
be in States which have no Interstate System; be logical components to a 
system serving the State's principal cities, national defense needs and 
military installations, and traffic generated by rail, water, and air 
transportation modes; and have been constructed to the geometric and 
construction standards adequate for current and probable future traffic 
demands and the needs of the locality of the segment. Such highways must 
also be on the National Highway System.
    (d) Routes proposed for Interstate designation under section 
332(a)(2) of the NHS Designation Act of 1995 (NHS Act) shall be 
constructed to Interstate standards and connect to the Interstate 
System. Proposals shall consider the criteria contained in appendix B of 
this subpart.
    (e) Proposals for Interstate route numbering shall be submitted by 
the State transportation agency to the Route Numbering Committee of the 
American Association of State Highway and Transportation Officials.
    (f) Signing of corridors federally designated as future Interstate 
routes can follow the criteria contained in appendix C of this subpart. 
No law, rule, regulation, map, document, or other record of the United 
States, or of any State or political subdivision thereof, shall refer to 
any highway under 23 U.S.C. 139, nor shall any such highway be signed or 
marked, as a highway on the Interstate System until such time as such 
highway is constructed to the geometric and construction standards for 
the Interstate System and has been designated as a part of the 
Interstate System.