511 Days to Section 4865, Three Years to Qualify a Battery

The fixed deadline and the shrinking window

Section 4865 of Title 10, enacted as Section 842 of the FY2024 NDAA, prohibits DoD from procuring covered battery cells and packs from prohibited sources. Programs fall into three compliance cohorts based on acquisition status at enactment: new acquisitions face a January 1, 2028 application date, standard batteries January 1, 2029, existing acquisition programs January 30, 2031. Those dates are statutory, fixed at enactment. Rulemaking delay does not move them; it compresses the window in front of them.

The implementing regulation, DFARS Case 2024-D011, has not published a Notice of Proposed Rulemaking, which is the first public draft a contractor could plan against. It has missed at least three projected NPRM dates: December 2024, February 2026, and July 2026. As of August 8, 2026, 511 calendar days remain before the new-acquisition cohort deadline. The public regulatory record still lacks a contract clause, compliance verification procedure, origin-documentation template, or waiver intake form. I mapped the missing procedural artifacts in Issue #6 and the rulemaking state in Issue #8.

The narrower question here is whether the rule's absence even matters at this point. Suppose it published tomorrow. Could any program in the new-acquisition cohort still complete battery qualification before the deadline?

That depends on how long defense battery qualification actually takes. The public record supplies enough precedent to bound the answer.

How long defense battery qualification actually takes

JLTV lithium safety certification: approximately three years

The strongest public precedent is NAVSEA's own account of the JLTV lithium-battery safety certification. NSWC Carderock reported that the certification took an estimated three years from initiation of the certification request to completion. The work included requirements verification with NAVSEA certification and technical authorities, testing at Carderock and partner facilities, and a concluding six-month evaluation. Certification covered the JLTV's full concepts of operation and deployment, including transportation aboard naval assets. That scope matters: this is platform-level safety qualification, not cell-level performance testing, and the two are not interchangeable.

The most useful detail in the account is that Carderock had already tested lithium-ion batteries for an earlier JLTV variant between 2012 and 2016, and reused some of that data rather than funding an all-new test program. Even with that head start, the later certification consumed approximately three years.

What the NAVSEA account does not publish: exact start or completion dates, the battery manufacturer, or the JLTV variant designation. No GAO report, congressional record, or program-office release located in the checked record provides tighter bounds. "An estimated three years" is the defensible public figure, and I am using it as such.

Army battery First Article Testing: 10–13 months

A 2003 GAO bid-protest decision reconstructs four Army lithium-battery First Article Testing cycles for primary batteries used in weapon sights and communications equipment. The fully documented case, the BA-5347/U lithium-manganese-dioxide battery, ran roughly 12 months from contract award to FAT approval: six and a half months of preparatory work covering bill of materials, supplier commitments, and cell and battery fabrication, then nearly six months of testing across 25 individual tests. First deliveries followed six months after FAT approval, 18 months after award.

CECOM supplied three additional data points to GAO: approximately 11 months (BA-5800 and BA-5567), 13 months (BA-5590 and BA-5567), and approximately 10 months (BA-5367). Offerors for a comparable lithium battery independently reported nine to ten months as the minimum for FAT preparation, testing, and reporting.

These are primary batteries, not rechargeable packs, and the process is Army FAT rather than NAVSEA lithium safety certification. The comparison has limits, and the limits run one way. Primary battery FAT excludes cycle-life testing, battery management system validation, thermal management qualification, and the abuse-test sequences specific to rechargeable lithium systems. Read the 10–13 month range as a floor for rechargeable pack qualification, not as a representative estimate.

Both precedent sets document the same structural feature: qualification clocks attach to the source, not the design. A battery electrochemically equivalent to an already-qualified product, produced by a different manufacturer, does not inherit the incumbent's qualification. It starts its own clock.

Why §4865 compliance triggers requalification

That structural feature is what connects the statute to the calendar. Section 4865 restricts the origin of covered cells and packs. If a program's current battery uses cells from a prohibited source, compliance means substituting cells from a non-prohibited source. Same chemistry, same form factor, different cell manufacturer. Program offices sometimes treat that as a documentation change. It is not.

NAVSEA's lithium battery safety manual (S9310-AQ-SAF-010, Revision 3) classifies a change in cell manufacturer as a Class I battery change, the category covering changes that affect battery safety characteristics. A Class I change requires reporting to a Technical Agent, the Navy's designated technical authority for the battery, and triggers a recertification review. The existing certification does not transfer automatically.

The manual does not require automatic full repetition of the original test suite. The Technical Agent and Certification Authority decide whether prior data suffice and what additional testing is necessary, based on the cell and battery design, deployment plans, and concept of operations. Analyses or comparisons against similar cells in similar applications can reduce scope. But the determination is case-specific. No public table maps "same chemistry, same form factor, different manufacturer" to a fixed reduced-test protocol or a standard duration.

So the requalification burden for a §4865-driven cell substitution is bounded but not predetermined. At minimum: a Class I change report, Technical Agent review, and a certification-authority decision on scope. At maximum: a tailored retest program consuming up to 18 test assets. The NAVSEA QPL FAQ separately states that a new qualified-products-list entry may take six months or longer, but the QPL is a distinct qualification layer from lithium safety certification and the two durations do not substitute for one another.

The backward schedule

The table converts the documented precedents into latest-possible start dates for a January 1, 2028 completion. These are calendar conversions, not program forecasts.

Two measurement notes on where these intervals start. The JLTV interval begins at certification request initiation. The Army FAT intervals begin at contract award, which excludes pre-award cell selection, solicitation, provenance verification, and design integration. The six-month row captures only the JLTV's concluding evaluation and excludes all preceding requirements verification and laboratory testing. And because the Army precedents involve primary batteries, the 10–13 month figures omit whole categories of testing that a rechargeable pack would add.

For any program requiring NAVSEA-type lithium safety certification of a new cell source, the window closed eighteen months ago. For programs requiring Army-type FAT, the theoretical window is four to seven months from today, and that figure assumes the cell source is already selected, the contract already awarded, and the FAT protocol already defined. None of those assumptions holds for a program that has not yet identified a compliant cell supplier, which requires a rule that specifies what compliant means.

The standard-battery cohort has until January 1, 2029, or 877 days. The extra year helps at the FAT level: a 10–13 month cycle fits if the clock starts by late 2027. It does not help at the certification level. A three-year cycle needed to begin by January 2026 to finish on time, and that date passed seven months ago. For programs requiring full lithium safety certification, the 2029 cohort sits in the same structural position as the 2028 cohort.

What the waiver actually buys

Section 4865 authorizes a one-year waiver for a specific system or battery. Granting one requires a finding that compliant supply of satisfactory quality and sufficient quantity is unavailable when needed at reasonable cost, or that the battery is a specified embedded component. The statute permits delegation of waiver authority, but no lower than USD(A&S).

As of this writing, no §4865 waiver has been processed. The implementing regulation has not published a procedure, template, staffing sequence, or target processing time. Nor does the statute require a waiver to be coupled to a funded alternate-source qualification plan or a purchase commitment. I examined the likely documentation fields in Issue #7, drawing on Section 805 and specialty-metals analogs; none of those fields has been confirmed by rulemaking or guidance.

The closest administrative analog with published processing data is the specialty-metals national-security waiver under 10 USC §4863. GAO reviewed all six such waivers granted between 2009 and 2014. Five had datable intervals from contractor discovery of noncompliance to DoD approval: two months, three, three, five, and ten. Median three months. GAO did not separate those intervals into problem identification, package development, and formal staffing, so the median contains an unknown quantity of pre-submission work. A separate GAO review found the Air Force processed a Berry Amendment waiver in roughly two to three months for a temporary decision, with a permanent waiver six months later. GAO also found the Air Force had not performed the market research or alternatives analysis its own policy required, so processing speed in those cases may overstate what a first-of-kind §4865 waiver would achieve.

Apply the three-month median to §4865. A program reaches January 1, 2028 without a qualified compliant battery and requests a waiver. Three months of processing, optimistic for a first-of-kind procedure with no published template, yields approval around April 2028. The statute specifies one year but does not state whether the year runs from approval or from application. Running from approval, the waiver expires around April 2029 and delivers twelve months of coverage. Running from the January 1, 2028 application date, it expires January 1, 2029 and delivers roughly nine months of productive duration after three months of processing. Either reading produces a coverage period shorter than the qualification cycle it is supposed to cover.

A one-year instrument cannot contain a multi-year qualification. The waiver does not pause the qualification clock, fund the qualification work, or obligate a cell supplier to hold production readiness while the clock runs. What it authorizes is continued procurement of noncompliant batteries while the program works toward compliance. If qualification is incomplete when the waiver lapses, the program requests another waiver or stops procuring. The effect is to convert the deadline into an annual renewal cycle, each renewal requiring a fresh supply-unavailability finding and consuming staff time that would otherwise go to the qualification the waiver exists to enable.

The gap in the public record

No GAO annual weapons-system assessment, CRS report, HASC or SASC hearing record, or program-office document located in the checked public record through August 2026 acknowledges the interaction between §4865 rulemaking delay, fixed cohort deadlines, and battery requalification time. GAO's 2025 and 2026 annual assessments covered 106 and 104 of DoD's costliest acquisition programs respectively. Neither discusses §4865 or battery-origin compliance. GAO's 2025 foreign-supplier-dependence report notes that DoD officials had begun developing domestic battery production and stockpiling certain lithium batteries, but says nothing about §4865, the 2028 cohort, or a qualification schedule.

This is a bounded finding. Internal program-office assessments, classified program reviews, and staff-level analyses may well exist and would not appear in any of the above. What has not entered the public institutional record is the interaction between a fixed deadline, a qualification cycle with an empirical floor measured in years, and a rulemaking process that has consumed most of the available window without producing a rule.

For the January 2028 cohort, programs requiring NAVSEA-type lithium safety certification cannot make the date. That conclusion follows from arithmetic, not judgment. Programs requiring only FAT-level qualification retain a theoretical four to seven months, but every precondition for using that margin — an identified compliant cell source, an awarded contract, a defined test protocol — depends on a published rule. Until the NPRM appears, the margin exists on paper and nowhere else.