13 CFR § 134.903 - Commencement of cases.

---
identifier: "/us/cfr/t13/s134.903"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "13 CFR § 134.903 - Commencement of cases."
title_number: 13
title_name: "Business Credit and Assistance"
section_number: "134.903"
section_name: "Commencement of cases."
chapter_name: "SMALL BUSINESS ADMINISTRATION"
part_number: "134"
part_name: "RULES OF PROCEDURE GOVERNING CASES BEFORE THE OFFICE OF HEARINGS AND APPEALS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 504; 15 U.S.C. 632, 634(b)(6), 634(i), 637(a), 648(l), 656(i), 657t and 687(c); E.O. 12549, 51 FR 6370, 3 CFR, 1986 Comp., p. 189."
regulatory_source: "61 FR 2683, Jan. 29, 1996, unless otherwise noted."
cfr_part: "134"
---


# 134.903 Commencement of cases.

(a) A Size Standard Petition must be filed at OHA not later than 30 calendar days after the publication in the *Federal Register* of the final rule that revises, modifies, or establishes the challenged size standard. An untimely Size Standard Petition will be dismissed.

(b) A Size Standard Petition filed in response to a notice of proposed rulemaking is premature and will be dismissed.

(c) A Size Standard Petition challenging a size standard that has not been revised, modified, or established through publication in the *Federal Register* will be dismissed.