Subpart A. Subpart A—Federal-aid Highway Systems

• § 470.101 - Purpose.
• § 470.103 - Definitions.
• § 470.105 - Urban area boundaries and highway functional classification.
• § 470.107 - Federal-aid highway systems.
• § 470.109 - System procedures—General.
• § 470.111 - Interstate System procedures.
• § 470.113 - National Highway System procedures.
• § 470.115 - Approval authority.

• APPENDIX

  • Appendix A to Subpart A of Part 470—Guidance Criteria for Evaluating Requests for Interstate System Designations under 23 U.S.C. 103(c)(4)(A) and (B)
  • Appendix B to Subpart A of Part 470—Designation of Segments of Section 332(a)(2) Corridors as Parts of the Interstate System
  • Appendix C to Subpart A of Part 470—Policy for the Signing and Numbering of Future Interstate Corridors Designated by Section 332 of the NHS Designation Act of 1995 or Designated Under 23 U.S.C. 103(c)(4)(B)
  • Appendix D to Subpart A of Part 470—Guidance Criteria for Evaluating Requests for Modifications to the National Highway System