The Mandate Gap — Baseline Edition

Zero qualified producers. No implementing rule. 19.5 months to first deadline.

This is the first measurement. Every future edition tracks movement from this point.

Section 842 of the FY 2026 NDAA prohibits DoD procurement of advanced batteries deriving more than 5% of total cost from foreign entities of concern. The statute is enacted. The DFARS implementing rule that would translate it into enforceable contract language has not been published in any form: no proposed rule, no interim rule, no final rule. The Section 836 Voluntary Compliance Repository, due January 1, 2027, is not operational. Both layers of compliance infrastructure are missing: no finalized enforcement mechanism at the contracting level, no public repository through which suppliers could register compliance attestations.

Gap math

Three deadlines, three categories:

Deadline	Category	Months remaining	Qualified suppliers	Gap status
January 1, 2028	New contracts for advanced batteries	19.5	0	Binding edge
January 1, 2029	Standard-format batteries across DoD	31.5	0	Unmeasured — no enforcement structure defined
January 31, 2031	Batteries under existing programs of record	56.5	0	Open

Against the nearest deadline, two suppliers are in active pursuit (Amprius: small UAV/drone cells; 6K Energy/CRG Defense: NMC cathode material for military-grade cells). Packet Digital is approaching production for defense battery applications; facility-level analysis is covered separately. The list is short. The shortness is the point.

A structural ambiguity compounds the gap: "cost" in the 95% threshold is undefined absent a DFARS rule. Whether compliance is measured at cell level, pack level, or total battery system cost including BMS and thermal management changes the math for every supplier in the pipeline. The statute reaches upstream into component processing and foreign ownership, but the implementing regulation that would define the cost basis does not exist.

The calendar makes qualification timelines unforgiving. A 6T lead-acid replacement qualifies against MIL-PRF-32565 in 12–18 months from first article submission, historically. Small UAV lithium cells add 6–12 months of platform integration testing beyond cell qualification. UUV modules involve submarine-adjacent safety and pressure-tolerance requirements exceeding 24 months. A supplier not yet in formal qualification for January 2028 is already late.

No waiver requests under Section 842 have been publicly documented as of this assessment date. Baseline: zero. When waiver invocations appear, they will map precisely where the gap binds. Track them as data.

Amprius leads on compliance. Domestic production remains unconfirmed.

Amprius Technologies holds the most advanced compliance position. Its DIU contract reached $18.1 million as of Q1 2026, explicitly structured for NDAA-compliant advanced drone batteries. The company has identified 11 supply chain components requiring NDAA compliance mapping (sourced from company blog, February 2026; not independently verified in SEC filings). Its fabless model accesses global network capacity exceeding 2.0 GWh across pouch, cylindrical, and prismatic formats. That 2.0 GWh figure spans all contract manufacturers globally, including those in China. It is not a measure of NDAA-compliant capacity.

Two pathways toward compliance are in motion. The allied-nation route runs through a Korea Battery Alliance with contract manufacturers announced December 2025, unnamed in public filings. No production volume from Korean-origin manufacturing is separately disclosed. The domestic route runs through Nanotech Energy in Chico, California, announced February 2026. The Q1 2026 10-Q lists Nanotech as a "U.S. production partner." No cell output from Chico is confirmed in any filing. The company references securing a partner for 1 million cylindrical cells per month domestically. Editorial inference: the partnership structure exists but production has not been publicly confirmed.

Defense customer traction is real but needs parsing. The 10-Q names AeroVironment, BAE Systems, Kraus Hamdani Aerospace, Teledyne FLIR, Nokia Drone Networks, and the US Army as customers who have tested and validated Amprius cells. Kraus Hamdani's K1000ULE received a sole-source award worth up to $270 million from US Air Forces Central Command in Q1 2026. These are customer-level contract wins improving Amprius purchase order visibility, distinct from program-of-record designations for Amprius itself.

6K Energy / CRG Defense build a cathode pathway. The timeline has slipped before.

The April 2026 collaboration pairs 6K's single-crystal NMC811 cathode with CRG Defense's cell integration, backed by approximately $52 million in combined DoD and DOE funding and a seven-year supply agreement with DLA validation.

Current supply runs through 6K's Battery Center of Excellence in North Andover, MA. The same press release describes the facility as both "supplying" CRG Defense and focused on "development of CAM products" and "early qualification." Editorial inference: North Andover is shipping at qualification quantities, not production scale.

Production-scale supply depends on PlusCAM Tennessee (Jackson, TN), currently targeting early 2028. Scrutinize that date. PlusCAM was originally scheduled for Q4 2024 when the DOE grant was announced. The cause of the 3+ year slip is not publicly explained. Three-year slips happen routinely in cathode plant construction. That routine quality does not reduce the material consequence for anyone modeling supply availability against the January 2028 deadline.

CRG Defense holds extensive SBIR/STTR history and a position on MDA's SHIELD IDIQ. No DoD production contract specifically for battery cells or packs is publicly documented.

Korea pivots to ESS, not defense

At InterBattery 2026 in Seoul, Lisa King, Director of Advanced Battery Strategy at LEAP Manufacturing, estimated that approximately 90% of cylindrical batteries used in defense and electronics are currently made in China (single-source estimate, directional). Separately, Eric Shields, senior battery advisor in the Office of the US Secretary of Defense, noted that more than 5,000 battery types are currently used across DoD systems, a figure that frames the standardization challenge the seminar was convened to address. The seminar signaled intent to deepen Korea-US defense battery partnerships. No program names, no qualification timelines, no volumes attached.

Where Korean cell makers are actually moving capital in 2025–2026 is ESS conversion for the US market. Samsung SDI secured a KRW 2 trillion+ ESS LFP deal from its Indiana facility. LG Energy Solution announced a $4.3 billion LFP battery deal identified by industry sources as Tesla. SK On has expanded BESS integrator agreements. All three are building US manufacturing positions for energy storage. None are pursuing US defense qualification at any publicly documented scale.

Samsung SDI's submarine battery is a Korean domestic military program. LG's defense connection runs indirectly through GM Defense's Ultium Cells technology, a media characterization without a confirmed supply contract. SK On is "in talks" with an unnamed US defense firm for UUV batteries. No contract, no program, no volume. Positioning language without evidence of qualified supply.

The most concrete Korea-defense link for US DoD purposes runs through Amprius' Korea Battery Alliance, explicitly structured for NDAA allied-nation compliance. The Korean cell makers themselves are building for the grid.

January 2029 and January 2031

January 1, 2029, standard batteries. 31.5 months. No supplier has publicly disclosed a qualification program targeting this deadline. No DFARS rule defines the compliance mechanism. Baseline gap: unmeasured, because the enforcement structure against which to measure does not exist.

January 31, 2031, existing programs. 56.5 months. Covers batteries under existing programs of record, the category with the deepest incumbent supply chains and the longest requalification cycles. No significant signal identified. Baseline gap: open.

Gap assessment date: May 18, 2026. Next update tracks: DFARS rulemaking status, Amprius/Nanotech production confirmation, PlusCAM Tennessee construction milestones, Korean maker defense qualification actions beyond diplomatic signals, initial waiver invocations, and cost-definition resolution. Sources graded inline. Editorial inferences labeled throughout.