Home › CFR › Title 24 › Part 380024 CFR Part 3800 — Investigations in Consumer Regulatory Programs§ 3800.10— Scope of rules.§ 3800.20— Subpoenas in investigations.§ 3800.30— Subpoena enforcement in district court.§ 3800.40— Investigational proceedings.§ 3800.50— Rights of witnesses in investigational proceedings.§ 3800.60— Settlements.