25 CFR Part 519

4 sections.

§ 519.1
Designation of an agent by a tribe
§ 519.2
Designation of an agent by a management contractor or a tribal operator
§ 519.3
Methods of service
§ 519.4
Copy of any official determination, order, or notice of violation

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.