39 CFR § 601.101 - Effective date.

---
identifier: "/us/cfr/t39/s601.101"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "39 CFR § 601.101 - Effective date."
title_number: 39
title_name: "Postal Service"
section_number: "601.101"
section_name: "Effective date."
chapter_name: "UNITED STATES POSTAL SERVICE"
subchapter_number: "H"
subchapter_name: "PROCUREMENT SYSTEM FOR THE U.S. POSTAL SERVICE: INTELLECTUAL PROPERTY RIGHTS OTHER THAN PATENTS"
part_number: "601"
part_name: "PURCHASING OF PROPERTY AND SERVICES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "39 U.S.C. 401, 404, 410, 411, 2008, 5001-5605."
regulatory_source: "72 FR 58252, Oct. 15, 2007, unless otherwise noted."
cfr_part: "601"
---


# 601.101 Effective date.

These regulations are effective November 14, 2007. Solicitations issued and resulting contracts entered into prior to that date will be governed by the regulations in effect at the time the solicitation was issued.