CFR›Title 11›Chapter I›Part 201 ContainsSections 201.1–201.5CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 201—EX PARTE COMMUNICATIONS Sections 201.1 § 201.1 Purpose and scope. 201.2 § 201.2 Definitions. 201.3 § 201.3 Public funding, audits and litigation: Ex parte contacts prohibited. 201.4 § 201.4 Rulemaking proceedings and advisory opinions: Ex parte contacts reported. 201.5 § 201.5 Sanctions. Authority52 U.S.C. 30107(a)(8), 30108, 30111(a)(8), and 30111(b); 26 U.S.C. 9007, 9008, 9009(b), 9038, and 9039(b).Source58 FR 59645, Nov. 10, 1993, unless otherwise noted. Previous 200 Part 200—Petitions for Rulemaking Next 300 Part 300—Non-Federal Funds