36 CFR § 4.2 - State law applicable.

---
identifier: "/us/cfr/t36/s4.2"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "36 CFR § 4.2 - State law applicable."
title_number: 36
title_name: "Parks, Forests, and Public Property"
section_number: "4.2"
section_name: "State law applicable."
chapter_name: "NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR"
part_number: "4"
part_name: "VEHICLES AND TRAFFIC SAFETY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "54 U.S.C. 100101, 100751, 320102."
regulatory_source: "52 FR 10683, Apr. 2, 1987, unless otherwise noted."
cfr_part: "4"
---


# 4.2 State law applicable.

(a) Unless specifically addressed by regulations in this chapter, traffic and the use of vehicles within a park area are governed by State law. State law that is now or may later be in effect is adopted and made a part of the regulations in this part.

(b) Violating a provision of State law is prohibited.