9 CFR § 202.121 - Rule 21: Intervention.
---
identifier: "/us/cfr/t9/s202.121"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "9 CFR § 202.121 - Rule 21: Intervention."
title_number: 9
title_name: "Animals and Animal Products"
section_number: "202.121"
section_name: "Rule 21: Intervention."
chapter_name: "AGRICULTURAL MARKETING SERVICE (FAIR TRADE PRACTICES PROGRAM), DEPARTMENT OF AGRICULTURE"
part_number: "202"
part_name: "RULES OF PRACTICE GOVERNING PROCEEDINGS UNDER THE PACKERS AND STOCKYARDS ACT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 228(a); 7 CFR 2.22 and 2.81."
regulatory_source: "43 FR 30510, July 14, 1978, unless otherwise noted."
cfr_part: "202"
---
# 202.121 Rule 21: Intervention.
At any time after docketing of a proceeding and before commencement of a hearing, oral or written, therein, the presiding officer may, upon petition, and for good cause shown, permit any person to intervene therein. The petition shall state with preciseness and particularity: (a) The petitioner's relationship to the matters involved in the proceeding; (b) the nature of the material the petitioner intends to present in evidence; (c) the nature of the argument the petitioner intends to make; and (d) the reasons why the petitioner should be allowed to intervene. Any such petition, and notice of the order thereon, shall be served on the parties and made a part of the record in the proceeding.