Home › CFR › Title 49 › Part 133149 CFR Part 1331 — Applications Under 49 U.S.C. 10706 and 13703§ 1331.1— Form and content of application.§ 1331.2— Required exhibits.§ 1331.3— Procedure.§ 1331.4— New parties to an agreement.§ 1331.5— Additional standards for retaining antitrust immunity by passenger bus industry rate bureaus.