The lead deadline is October 1, 2027, not January 1, 2028. The implementing rulemaking for the Section 842 battery sourcing regime now has a docket identity: DFARS Case 2024-D011. Reading the case file surfaces a second battery prohibition riding inside it, one that attaches 92 days before the §4865 new-acquisition date this section has been tracking. The July 2026 NPRM milestone produced nothing. Exact Federal Register searches on the case number and on RIN 0750-AM08 both return zero documents as of today.
Two provisions, one case, DFARS Parts 212, 240 and 252:
- October 1, 2027 — FY2024 NDAA §154. Any battery produced by six named entities. No format limit, no chemistry limit, no dollar threshold.
- January 1, 2028 — 10 U.S.C. §4865, new acquisitions only. Assembly outside covered nations, more than 95% of functional-cell-component cost originating outside covered nations, and no technology licensed from a covered-nation entity.
That revises Issue #3, which reported no battery rulemaking object in the public record. The object was there. It is abstracted under §154 and never names §4865, so entity-based searching walked past it. Issue #7 holds unchanged: no clause text, no waiver template, no cost methodology.
Gap math
427 days to October 1, 2027. 519 days to January 1, 2028.
Treat the two provisions as separate compliance problems, because a supplier answers them from different documents. Section 154 of Pub. L. 118-31 bars DoD from obligating or expending funds on a battery produced by CATL, BYD, Envision, EVE, Gotion, Hithium or any successor, with "produced by" reaching final assembly or the supply of a majority of components. That is answerable from a bill of materials. Section 4865 is not, and the reason is that the public record defines none of the inputs the arithmetic requires: no cost denominator, no allocation method across the eight-plus functional component categories, no designated certifier. Section 154 is a lookup. Section 4865 is a cost-accounting build with no published chart of accounts. A drafting team under schedule pressure ships the lookup first. That is editorial inference rather than a documented DoD position, but it is consistent with how the case has been abstracted and with which date arrives first.
The two tests also return different answers on the same supplier. LG Energy Solution, Samsung SDI and SK On clear §154 without effort, because §154 is an entity lookup and they are not on the list. The clause that can reach them sits in §4865: a line running LFP process technology licensed from a covered-nation entity fails a test indifferent to where the cell was assembled or where the cathode came from. Inference from statutory text. Not a finding about any Korean maker's licensing position.
On the supply side, the §154 question is narrower than qualification, and nobody has answered it publicly. The domestic and allied integrators tracked here are pack builders whose §154 exposure lives one tier down, in their cell suppliers: Packet Digital (NAWCAD SBIR Phase III, Fargo pouch), EnerSys/Bren-Tronics (recurring DLA awards, strongest 6T incumbent), Ultralife, and the Forge Nano–Samsung SDI Morrisville line targeted for 2028. None has published a cell-level traceback against the six names. Unchanged since Issue #7. The format least likely to come back clean is small-format cylindrical and pouch for UAV and portable packs, where several of the six are volume producers and the domestic integrator base does not make its own cells. Ultralife's PRC subsidiary, flagged in Issue #6, belongs to the §4865 problem and not the §154 one. Section 154 tests who produced the battery, not who owns the producer.
Public waiver activity is zero. Read that as an artifact of the missing rule, not as evidence the gap has closed. Section 154 hands the Secretary of Defense an unqualified waiver authority carrying no criteria, no duration, and no reporting or delegation rule in the statutory text, which leaves a program office with nothing to apply against. Section 4865's waiver sits worse still, since relief cannot be requested from a certification nobody has defined. Waivers become a measurable signal only after the rule exists.
Now the timing. Four completed DFARS cases imposing foreign-source or prohibited-source acquisition restrictions, proposed rule to final:
| Case | Restriction | Scope built | NPRM → Final |
|---|---|---|---|
| 2021-D021 | Foreign shipyard overhaul | Part 225 only | 217 days |
| 2022-D013 | Overseas fuel prohibited sources | Source restriction + certification | 224 days |
| 2021-D015 | Covered metals | Source restriction + certification | 399 days |
| 2020-D017 | Auxiliary ship engines | + commercial acquisition, subcontract flowdown | 1,024 days |
Median 312 days. Four observations do not make a distribution. What the spread does track is how much contractor-facing certification machinery each rule had to construct, and the slowest of the four built into the same territory 2024-D011 occupies. Run the range against a hypothetical NPRM published tomorrow. The fast end lands a final rule in early March 2027, seven months ahead of §154. The slow end lands in May 2029, nineteen months behind it. That is a slip budget, not a forecast. Every additional month the draft sits inside the building comes off the fast end one for one, and the case has already slipped nineteen months across three published targets: December 2024, then February 2026, then July 2026. There is no OIRA review record to read as a leading indicator, though the action is classified nonsignificant, so an entry was never guaranteed. The docket offers no forward visibility in either direction.
The instrument that skips the comment period
A final rule is one path to clause text in a solicitation. It is not the only one, and treating it as the only one is the error most likely to catch a supply chain team without a representation package on the shelf.
DoD issued Class Deviation 2022-O0008 on March 18, 2022 to implement the FY2022 restriction on personal protective equipment from China, Russia, Iran and North Korea. A class deviation authorizes contracting officers to use clause text before it exists in the codified DFARS. No proposed-rule stage, no comment period. That one flowed down to subcontracts for commercial products and COTS items. The interim rule followed 319 days later, the final rule 489 days later. The same instrument is operating now: Class Deviation 2025-O0007, issued September 22, 2025, made the Huawei-linked semiconductor prohibition immediately effective pending finalization of DFARS Case 2025-D010. It is 312 days old and still operative.
The binding date is set by the statute, not by the rulemaking calendar, and the deviation instrument closes that gap without a comment period. Plan for clause text to appear in a solicitation before it appears in the Federal Register.
Nothing in the public record indicates a battery deviation has been drafted. Section 154 attaches on October 1, 2027 regardless, and DoD has a demonstrated instrument for precisely that situation.
Why Parts 212 and 240 are the scope tell
DFARS 212.301(f) attaches DoD clauses to acquisitions run under FAR Part 12 commercial procedures. Part 212 sitting in the case footprint means the drafters intend the clause to reach commercial-product buys. That is where the volume is. BB-2590, cylindrical COTS and most 6T procurement do not travel through development contracts.
It does not settle COTS treatment. 212.371 and 212.505 carve items out, and both outcomes already coexist inside the current Part 240, where telecommunications prohibitions reach FAR Part 12 awards while several safeguarding clauses exclude COTS-only acquisitions.
Part 240 deserves a note of its own. The codified DFARS still lists it as Reserved. An operational Part 240, "Information Security and Supply Chain Security," exists solely through a class deviation effective February 1, 2026, with prohibited sources at 240.272. The battery rule's intended home is a part running on a deviation itself.
One more indication that the operative formulation is unsettled inside the government. The June 2026 DIBC cylindrical-cell solicitation applies its >95% threshold to electrode active material by value. The statute applies its threshold to total functional-cell-component cost and stacks a technology-license test on top. Two different denominators, written by the same government, the solicitation dated June 22, 2026 and the statute it has to live under already in force.
Assessment
Assessment, dated July 31, 2026: static, horizon shortened. The gap did not narrow. Two things changed. The binding date is not the one this section has been tracking, and the enforcement mechanism most likely to reach suppliers first publishes without a comment period, which means representations can arrive carrying a battery clause on essentially zero notice. The first clause will be the entity question, because it is the only one draftable without solving the measurement problem underneath §4865. A supply chain team can build that answer today: a six-entity traceback for every cell in every DoD-facing SKU, current to the successor language. The §4865 cost stack is not buildable yet. The denominator does not exist in public text.
Other deadlines
January 1, 2029 — standard batteries. QPL-32565 still shows no established qualified product and no qualified source. DLA's FY2027 budget justification reports completed manufacturing enhancements and product designs for high-energy Li-ion 6T under MIL-PRF-32565. Those are development milestones, not a qualification row, and no program office can cite the former in a source-selection file. Static.
January 30, 2031 — batteries in existing acquisitions. No significant change. Nothing in the 2024-D011 record touches it.
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DIBC Phase II invitations: The consortium's Q&A on RPP BES-26-01 says Phase II invitations may come early in government FY2027 subject to appropriations and any continuing resolution, which makes the CR outcome a direct gate on whether the 50 MWh threshold / 3 GWh objective funnel produces any award at all.
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Blue List schema gap: DCMA reported on July 27 that it has accelerated Blue List onboarding through recognized assessors and a component-level compliance checklist, but the live public UAV endpoint still exposes no field for cell origin, battery supplier, or technology licensing — platform clearance and §4865 provenance remain separate records.
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The repository that omits batteries: An FY2026 NDAA provision directs DoD to stand up a voluntary domestic-sourcing compliance repository by January 1, 2027, and its statutory definition names §§4862, 4863, 4864 and Buy American but not §4865 — worth watching whether battery evidence gets added or routed elsewhere.
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Packet Digital's LRIP completion dates: The Navy's $26,999,999 April 2026 order runs pilot production and LRIP-1/LRIP-2 pouch cells to April 2028, which puts its production evidence on the far side of both the October 2027 and January 2028 dates.

