14 CFR § 13.224 - Burden of proof.

---
identifier: "/us/cfr/t14/s13.224"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 13.224 - Burden of proof."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "13.224"
section_name: "Burden of proof."
chapter_name: "FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "B"
subchapter_name: "PROCEDURAL RULES"
part_number: "13"
part_name: "INVESTIGATIVE AND ENFORCEMENT PROCEDURES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "18 U.S.C. 6002; 28 U.S.C. 2461 note; 49 U.S.C. 106(g), 5121-5124, 40113-40114, 44103-44106, 44701-44704, 44709-44710, 44713, 44725, 44742, 44802 (note), 46101-46111, 46301, 46302 (for a violation of 49 U.S.C. 46504), 46304-46316, 46318-46320, 46501-46502, 46504, 46507, 47106, 47107, 47111, 47122, 47306, 47531-47532; 49 CFR 1.83."
regulatory_source: "Docket No. 18884, 44 FR 63723, Nov. 5, 1979, unless otherwise noted."
cfr_part: "13"
---


# 13.224 Burden of proof.

(a) Except in the case of an affirmative defense, the burden of proof is on the agency.

(b) Except as otherwise provided by statute or rule, the proponent of a motion, request, or order has the burden of proof.

(c) A party who has asserted an affirmative defense has the burden of proving the affirmative defense.