48 CFR § 326.607-4 - 326.607-4 Challenge Not Timely.

---
identifier: "/us/cfr/t48/s326.607-4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "48 CFR § 326.607-4 - 326.607-4   Challenge Not Timely."
title_number: 48
title_name: "Federal Acquisition Regulations System"
section_number: "326.607-4"
section_name: "326.607-4   Challenge Not Timely."
chapter_number: 3
chapter_name: "HEALTH AND HUMAN SERVICES"
subchapter_number: "D"
subchapter_name: "SOCIOECONOMIC PROGRAMS"
part_number: "326"
part_name: "OTHER SOCIOECONOMIC PROGRAMS"
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. 301, 25 U.S.C. 47, 25 U.S.C. 1633, 41 U.S.C. 253(c)(5), and 42 U.S.C. 2003."
regulatory_source: "80 FR 72151, Nov. 18, 2015, unless otherwise noted."
cfr_part: "326"
---


# 326.607-4 326.607-4   Challenge Not Timely.

If a CO receives an untimely filed challenge of a representation, the CO must notify the challenger that the challenge cannot be considered on the instant acquisition but will be considered in any future actions. However, the CO may question at any time, before or after award, the representation of an IEE.