---
kind: "unit"
title: "15"
title_heading: "Commerce and Trade"
key: "ch46/schIII"
level: "subchapter"
label: "Subchapter III"
heading: "Diagnostic Inspection Demonstration Projects"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/15/ch46-schIII"
sections_count: 3
---

# Subchapter III — Diagnostic Inspection Demonstration Projects

Title 15 — Commerce and Trade › Chapter 46 — Motor Vehicle Information and Cost Savings

## Contents

- [Part A — State Programs](/usc/15/ch46-schIII-ptA.md)
- [Part B — Special Demonstration Projects](/usc/15/ch46-schIII-ptB.md)
- [Part C — Authorization of Appropriations](/usc/15/ch46-schIII-ptC.md)