15 CFR Part 241

7 sections.

§ 241.1
§ 241.1 Capacities.
§ 241.2
§ 241.2 Legal standard barrels.
§ 241.3
§ 241.3 Application of tolerance for “distance between heads.”
§ 241.4
§ 241.4 Application of tolerance for “diameter of head.”
§ 241.5
§ 241.5 Standard dimensions.
§ 241.6
§ 241.6 Classes of barrels for tolerance application.
§ 241.7
§ 241.7 Tolerances to be allowed.

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.