SUBPART A—Federal-aid Highway Systems (§470.101 to §470.115)
- 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.