---
kind: "section"
citation: "23 C.F.R. § 470.101"
title: "23"
number: "470.101"
heading: "Purpose."
url: "https://uscodex.org/cfr/23/470.101"
---

# §470.101. Purpose.


This part sets forth policies and procedures relating to the identification of Federal-aid highways, the functional classification of roads and streets, the designation of urban area boundaries, and the designation of routes on the Federal-aid highway systems.


## Notes

### Source

Source: 62 FR 33355, June 19, 1997, unless otherwise noted.

### Authority

Authority: 23 U.S.C. 103(b)(2), 103(c), 134, 135, and 315; and 49 CFR 1.85.

### Source

Source: 40 FR 42344, Sept. 12, 1975, unless otherwise noted. Redesignated at 41 FR 51396, Nov. 22, 1976.