The 180-day DFARS rulemaking checkpoint implied by Pub. L. 119-60's December 2025 enactment passed on approximately June 16, 2026, with no public artifact in the Federal Register. Eighteen months remain before the Section 4865 new-program deadline prohibits DoD from procuring covered batteries, across 6T vehicle, small UAV, and UUV categories, that fail a 95% non-FEOC functional-cell-component cost threshold. On all three clocks that govern the 2028 deadline, the gap between mandate and compliance infrastructure is widening.
Gap Math
Clock 1: The statute. Section 4865 defines functional cell components with specificity: cathode, anode, separator, electrolyte and electrolyte salts, battery cell casing, electrode foils and binders, plus any component the Secretary later designates. The 95% threshold is calculated against total cost of these components, not total battery cost. Compliance is therefore determined at the cell-chemistry level, where cathode active material dominates the cost stack. Pack-level domestic labor and BMS integration, which could dilute FEOC content as a share of total battery cost, are irrelevant to the statutory calculation. For NMC, NCA, or LFP cells, the CAM sourcing decision is the compliance decision.
The tiered deadlines assign distinct application dates by contract type:
| Deadline | Applies to |
|---|---|
| January 1, 2028 | New contracts and new 5-year period task or delivery orders |
| January 1, 2029 | Standard batteries with a national stock number or commercial equivalent |
| January 1, 2031 | Modifications or extensions of existing contracts |
No publicly available guidance specifies the cost-accounting methodology, allocation rules, or documentation standard a supplier would use to demonstrate the 95% threshold to a contracting officer. The contracting officer who will need to enforce this requirement in eighteen months has no implementing clause to flow into a contract.
Clock 2: Qualified supply. Assessed finding: zero domestic or allied-nation suppliers have publicly disclosed a completed Section 4865-compliant battery qualification in any major defense category. Zero have publicly disclosed an active qualification program referencing Section 4865, FEOC component-cost, or the 95% functional-cell-component threshold. This finding is based on a review of SEC filings, public contract databases (SAM.gov, SBIR.gov), company press releases, and defense trade press through late June 2026.
Real defense battery suppliers exist. EnerSys acquired Bren-Tronics in July 2024 for $206.4M, gaining a Commack, NY manufacturer of military lithium batteries including 6T products. Ultralife reported $65.9M in FY2025 government/defense battery sales. Farad Power received a March 2026 Army award for high-energy 6T batteries. None of these companies' public filings reference Section 4865 compliance, FEOC component-cost origin, or the 95% threshold. No Korean cell maker has publicly disclosed a Section 4865-referenced qualification program or defense contract with FEOC component-cost language in English-language IR materials reviewed through late June 2026.
The qualification timeline makes the arithmetic binding. For 6T vehicle batteries, a defensible proxy inferred from Army SBIR phase structure and first article testing requirements under MIL-PRF-32565 is 18–36 months from a changed cell route or materially revised pack. For small UAV batteries, safety assessment and safety release processes gate fielding; 12–24 months is a cautious proxy for a mature pack design. These are inferred ranges based on program structure and phase durations, not published DoD averages. Eighteen months against an 18–36 month qualification floor, and that floor assumes a supplier starts today with a cell route already meeting the 95% threshold. No supplier has publicly demonstrated that starting position.
Clock 3: Implementation infrastructure. eCFR returns zero results for "10 U.S.C. 4865." No proposed rule, interim rule, final rule, or advance notice of proposed rulemaking. The DFARS clause that would flow 4865 requirements into contracts does not exist in the public regulatory record.
Pub. L. 119-60 Section 836 requires DoD to establish a publicly available online compliance repository by January 1, 2027, with voluntary attestation under False Claims Act liability, unique product identifiers, and proof of registration. No design specification, draft schema, or implementation artifact has appeared in the Federal Register or eCFR.
The Section 836 definition of "covered sourcing requirements" lists Sections 4862, 4863, 4864, and Chapter 83 of Title 41. It does not list Section 4865. The compliance infrastructure Congress mandated for defense sourcing requirements does not, by its own statutory terms, cover batteries.
If this omission persists into implementation, battery suppliers seeking to demonstrate 4865 compliance will have no centralized attestation mechanism, and contracting officers will have no registry to verify against. This is a structural gap in the architecture connecting the mandate to the contract, and it requires either a statutory amendment or a creative regulatory interpretation to close.
The Waiver as Operating Model
Section 4865 permits the Secretary of Defense to waive the battery limitation for a specific system or battery for one year, renewable, when compliant batteries of satisfactory quality and sufficient quantity cannot be acquired at reasonable cost. Waiver authority is delegable only to USD(A&S). Congress required a status briefing to defense committees by December 1, 2028, and every three years thereafter. The statute does not require per-waiver Federal Register publication or public posting.
Waivers will therefore operate as a quiet administrative bridge, visible to Congress in aggregate briefings but invisible in the public procurement record unless a contract artifact or congressional action exposes them. For a team tracking compliance from outside DoD, the waiver regime is opaque by design. You will infer their existence from the absence of contract cancellations or program delays that the supply gap would otherwise require.
Upstream signals reinforce this reading. The Wall Street Journal reported on June 25 that the Army awarded preliminary leases to Titan Mining, EnergyX, Ioneer, and REalloys for critical-mineral processing on Army bases, with lithium refining at Red River Army Depot in Texas and graphite refining in Alabama or Arkansas, roughly $2 billion in expected collective investment, construction as early as 2027, and mineral production expected by 2028. That production timeline coincides with the first Section 4865 application date, not ahead of it. Feedstock entering a refining, cathode synthesis, cell manufacturing, and qualification pipeline measured in years does not produce qualified cells in the same year. These leases are evidence of the mandate gap's depth, measured in pipeline stages that have yet to begin.
Given the current state of all three clocks, the most probable operating model for the January 2028 deadline is systematic waiver issuance across new programs, with compliance deferred to the 2029 and 2031 tranches. Whether that deferral produces actual compliance or inherited waivers depends on actions that have not yet begun in the public record.
Other Deadlines — Status Lines
January 1, 2029 (standard batteries). No significant change since enactment. No public procurement signal, qualification disclosure, or waiver artifact observed. The 6T battery category falls here for existing NSN items. The same supplier base that has not demonstrated 4865 compliance for new programs has not demonstrated it for standard batteries. Gap assessment: widening.
January 1, 2031 (existing programs). No significant change. Longest runway, largest installed contract base. Gap assessment: static, with the caveat that compliance posture for 2028 and 2029 will determine whether 2031 is a real deadline or an inherited waiver regime.
Gap assessment as of July 4, 2026. Next observable checkpoint: whether any Section 836 repository design artifact appears before the January 1, 2027 deadline, and whether that repository's scope is amended to include Section 4865.
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New Pentagon drone office: DoD is standing up a Direct Reporting Portfolio Manager for Unmanned Systems as a "single joint integrator" covering small drones, UUVs, ground robots, and autonomous systems with a reported $74 billion budget request, which accelerates demand across every battery category Section 4865 covers without identifying a single compliant cell route.
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BlueUAS list transition to DCMA: The Blue UAS Cleared List is moving from DIU to DCMA under the June 2025 drone dominance memo, with monthly update cadence and 54 training-cleared plus 29 operationally-cleared platforms as of February 2026, but public list fields still do not expose battery supplier, cell chemistry, or Section 4865 waiver status.
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FCC drone component enforcement: The FCC added foreign-made drones and drone parts to the Covered List in December 2025, then issued temporary waivers allowing software and firmware updates for already-authorized foreign-produced drones and components until at least January 2029, creating a parallel compliance timeline that intersects with but does not resolve Section 4865 battery sourcing.
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EnerSys/Bren-Tronics 4865 positioning: EnerSys completed the $206.4M Bren-Tronics acquisition in July 2024 and holds the strongest public domestic defense-battery asset base including 6T products, but its FY2026 10-K contains no Section 4865, FEOC component-cost, or 95% threshold language, making it the clearest test case for whether real suppliers begin disclosing compliance posture as the deadline approaches.