39 CFR Part 281

4 sections.

§ 281.1
§ 281.1 Notification of firm mailers.
§ 281.2
§ 281.2 Action required by processing postal officials.
§ 281.3
§ 281.3 Postal inspector responsibilities.
§ 281.4
§ 281.4 Disclaimer.

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.