16 CFR Part 1420

4 sections.

§ 1420.1
§ 1420.1 Scope and application.
§ 1420.2
§ 1420.2 Definitions.
§ 1420.3
§ 1420.3 Requirements for four-wheel ATV's
§ 1420.4
§ 1420.4 Restrictions on three-wheel ATVs.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.