23 USC § 321 - Signs identifying funding sources

---
identifier: "/us/usc/t23/s321"
source: "usc"
legal_status: "official_legal_evidence"
title: "23 USC § 321 - Signs identifying funding sources"
title_number: 23
title_name: "HIGHWAYS"
section_number: "321"
section_name: "Signs identifying funding sources"
chapter_number: 3
chapter_name: "GENERAL PROVISIONS"
positive_law: true
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Added Pub. L. 109–59, title I, § 1901(a), Aug. 10, 2005, 119 Stat. 1464.)"
---


# § 321. Signs identifying funding sources

If a State has a practice of erecting on projects under actual construction without Federal-aid highway assistance signs which indicate the source or sources of any funds used to carry out such projects, such State shall erect on all projects under actual construction with any funds made available out of the Highway Trust Fund (other than the Mass Transit Account) signs which are visible to highway users and which indicate each governmental source of funds being used to carry out such federally assisted projects and the amount of funds being made available by each such source.

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**Source Credit**: (Added Pub. L. 109–59, title I, § 1901(a), Aug. 10, 2005, 119 Stat. 1464.)

## Editorial Notes

### Codification

Section, as added by , consists of text of , , , which was formerly set out as a note under , and was repealed by , , .

### Prior Provisions

A prior section 321, added , , ; amended , , ; , , ; , , ; , , , related to National Highway Institute, prior to repeal by , , .