45 CFR Part 2

6 sections.

§ 2.1
Scope, purpose, and applicability
§ 2.2
Definitions
§ 2.3
Policy on Presentation of testimony and production of documents
§ 2.4
Procedures when voluntary testimony is requested or when an employee is subpoenaed
§ 2.5
Subpoenas duces tecum
§ 2.6
Certification and authentication of records

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.