FAR/DFARS Federal Acquisition Brief

Headline

FAR Council proposes prohibition on procurement of certain semiconductor products and services under Section 5949 of FY2023 NDAA

Executive Summary

The Federal Acquisition Regulatory Council issued a proposed rule on February 17, 2026 amending the Federal Acquisition Regulation to implement Section 5949 of the FY2023 National Defense Authorization Act (Public Law 117-263), which prohibits federal procurement of certain semiconductor products and services produced or designed by entities of concern. The proposed rule establishes new FAR clauses prohibiting agencies from procuring specified semiconductor products and services and from contracting with entities that use them, with a statutory effective date of December 23, 2027 anticipated.

Key Regulatory Signals

• Section 5949 Implementation Trigger: The proposed rule operationalises Section 5949 of the FY2023 NDAA, which mandates that federal agencies cease procuring covered semiconductor products and services from designated entities of concern; defense and civilian agency procurement officers must prepare for the December 23, 2027 statutory effective date and ensure acquisition pipelines are calibrated for compliance.
• Prime Contractor Flow-Down Obligations: The rule contemplates flow-down clauses requiring prime contractors to certify that covered semiconductor products and services are not used in supplied goods or services; primes and major subcontractors must initiate supply chain mapping and supplier representation processes well in advance of the effective date to avoid disqualification from federal awards.
• Covered Entities and Definitional Scope: The proposed rule references the underlying NDAA Section 5949 list of covered entities, which is anticipated to align with Department of Commerce Entity List designations and Section 1260H lists; legal counsel should track final-rule definitional language for scope of designated foundries, IP cores, and design service providers.
• GSA, DoD, and NASA Contract Clauses: Federal Acquisition Circulars finalising the rule will introduce new clauses applicable across GSA, DoD, NASA, and civilian agency contracts; contractors with existing IDIQ vehicles, schedules, and task orders should expect modifications and bilateral amendments as the effective date approaches.
• Public Comment Window: The proposed rule opened a public comment period as required under the Administrative Procedure Act; defense industry associations, semiconductor manufacturers, IT product OEMs, and federal contractors with material exposure should evaluate substantive comment submissions to clarify scope, certification methodology, and waiver provisions before a final rule is issued.

Regulatory Delta

Section 5949 of the FY2023 NDAA was enacted in December 2022 alongside the broader CHIPS and Science Act framework, but its implementation has been deferred pending FAR rulemaking, with the statutory effective date set for five years post-enactment to allow for industry adjustment. This proposed rule is the principal procurement-side implementing instrument of Section 5949 and represents the most consequential federal procurement supply chain restriction since the Section 889 Huawei/ZTE telecommunications ban implemented through FAR 52.204-25 and the FY2019 NDAA. The semiconductor prohibition framework structurally extends the Section 889 model from telecommunications equipment to semiconductors, with broader implications for the federal IT supply chain than Section 889 produced. The action also aligns with the Department of Commerce Entity List, the Bureau of Industry and Security's expanded export controls on advanced semiconductors, and the CHIPS Act incentive framework, positioning federal procurement as a coordinated tool of US semiconductor industrial policy.

Materiality Classification

High — Implements the principal procurement-side instrument of Section 5949 with a statutory December 23, 2027 effective date; binding on every federal agency procurement and every prime/sub on a federal contract that touches covered semiconductor products or services.

Time Horizon

Medium-Term — Public comment period now open; final rule and FAC publication expected within 6–12 months; statutory compliance effective date December 23, 2027 establishes the supply chain transition deadline.

Intelligence Outlook

Monitor the FAR Council for the final rule and Federal Acquisition Circular publication. Track the Department of Commerce Entity List, BIS advanced semiconductor export controls, and any FAR Council interim guidance on certification methodology. Watch defense industry comment submissions for scope challenges and DoD-specific DFARS implementing actions, including any program-specific waivers or compliance roadmaps.