---
kind: "unit"
title: "45"
title_heading: "Public Welfare"
key: "subtA/subchA/part3/subpartB"
level: "subpart"
label: "Subpart B"
heading: "Traffic Regulations"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/45/subtA-subchA-part3-subpartB"
sections_count: 7
---

# Subpart B — Traffic Regulations

Title 45 C.F.R. — Public Welfare › Subtitle A — Department of Health and Human Services › Subchapter A — General Administration › Part 3 — Conduct of Persons and Traffic on the National Institutes of Health Federal Enclave

## Sections

- [§3.21. Emergency vehicles.](/cfr/45/3.21.md)
- [§3.22. Request for identification.](/cfr/45/3.22.md)
- [§3.23. Parking.](/cfr/45/3.23.md)
- [§3.24. Parking permits.](/cfr/45/3.24.md)
- [§3.25. Servicing of vehicles.](/cfr/45/3.25.md)
- [§3.26. Speed limit.](/cfr/45/3.26.md)
- [§3.27. Bicycles.](/cfr/45/3.27.md)