14 CFR § 406.103 - Definitions that apply in part 406.

---
identifier: "/us/cfr/t14/s406.103"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 406.103 - Definitions that apply in part 406."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "406.103"
section_name: "Definitions that apply in part 406."
chapter_name: "COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "B"
subchapter_name: "PROCEDURE"
part_number: "406"
part_name: "INVESTIGATIONS, ENFORCEMENT, AND ADMINISTRATIVE REVIEW"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "51 U.S.C. 50901-50923."
regulatory_source: "Docket No. FAA-2001-8607, 66 FR 2180, Jan. 10, 2001, unless otherwise noted."
cfr_part: "406"
---


# 406.103 Definitions that apply in part 406.

For the purpose of this part:

*Administrative law judge* means an administrative law judge appointed pursuant to the provisions of 5 U.S.C. 3105.

*Attorney* means a person licensed by a state, the District of Columbia, or a territory of the United States to practice law or appear before the courts of that state or territory.

*Complainant* in a civil penalty action means the proponent of the civil penalty in the FAA.

*FAA decisionmaker* means the Associate Administrator for Commercial Space Transportation, or the Administrator of the Federal Aviation Administration, acting in the capacity of the decisionmaker on appeal; or a person who has been delegated the authority to act for the FAA decisionmaker. As used in this part, the FAA decisionmaker is the official authorized to issue a final decision and order of the Secretary in an action.

*Mail* means U.S. first class mail, U.S. certified mail, U.S. registered mail, or an express courier service.

*Party* means the respondent or the complainant.

*Personal delivery* includes hand-delivery or use of a same-day messenger service. “Personal delivery” does not include the use of Government interoffice mail service.

*Properly addressed* means using an address contained in agency records; a residential, business, or other address used by a person on any document submitted under this part; or any other address determined by other reasonable and available means.

*Respondent* means a person who has been charged with a violation.