---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "subtB/chV/part537"
level: "part"
label: "Part 537"
heading: "Automotive Fuel Economy Reports"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/49/subtB-chV-part537"
sections_count: 12
---

# Part 537 — Automotive Fuel Economy Reports

Title 49 C.F.R. — Transportation › Subtitle B — Other Regulations Relating to Transportation › Chapter V — National Highway Traffic Safety Administration, Department of Transportation

## Sections

- [§537.1. Scope.](/cfr/49/537.1.md)
- [§537.2. Purpose.](/cfr/49/537.2.md)
- [§537.3. Applicability.](/cfr/49/537.3.md)
- [§537.4. Definitions.](/cfr/49/537.4.md)
- [§537.5. General requirements for reports.](/cfr/49/537.5.md)
- [§537.6. General content of reports.](/cfr/49/537.6.md)
- [§537.7. Pre-model year and mid-model year reports.](/cfr/49/537.7.md)
- [§537.8. Supplementary reports.](/cfr/49/537.8.md)
- [§537.9. Determination of fuel economy values and average fuel economy.](/cfr/49/537.9.md)
- [§537.10. Incorporation by reference by manufacturers.](/cfr/49/537.10.md)
- [§537.11. Public inspection of information.](/cfr/49/537.11.md)
- [§537.12. Confidential information.](/cfr/49/537.12.md)