16 CFR § 803.21 - Additional information shall be supplied within reasonable time.

---
identifier: "/us/cfr/t16/s803.21"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "16 CFR § 803.21 - Additional information shall be supplied within reasonable time."
title_number: 16
title_name: "Commercial Practices"
section_number: "803.21"
section_name: "Additional information shall be supplied within reasonable time."
chapter_name: "FEDERAL TRADE COMMISSION"
subchapter_number: "H"
subchapter_name: "RULES, REGULATIONS, STATEMENTS AND INTERPRETATIONS UNDER THE HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976"
part_number: "803"
part_name: "TRANSMITTAL RULES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 18a(d); 15 U.S.C. 18b."
regulatory_source: "43 FR 33548, July 31, 1978, unless otherwise noted."
cfr_part: "803"
---


# 803.21 Additional information shall be supplied within reasonable time.

All additional information or documentary material requested pursuant to section 7A(e) and § 803.20 (or, if such request is not fully complied with, the information or documentary material submitted and a statement of the reasons for such noncompliance in accordance with § 803.3) shall be supplied within a reasonable time.