Regulations last checked for updates: Dec 16, 2025

Title 23 - Highways last revised: Dec 03, 2025
All TitlesTitle 23Chapter IPart 470Subpart AAppendix Appendix C - 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)
Collapse to view onlyAppendix Appendix C - 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)
Table of Contents

authority: 23 U.S.C. 103(b)(2), 103(c), 134, 135, and 315; and 49 CFR 1.85
source: 40 FR 42344, Sept. 12, 1975, unless otherwise noted. Redesignated at 41 FR 51396, Nov. 22, 1976.
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