Berry Amendment + Body Armor — What DoD Actually Requires
The 1941-origin domestic-sourcing requirement that shapes every DoD body-armor contract. Fiber, weaving, and fabrication — what must be US-made.
Berry Amendment + Body Armor
The Berry Amendment (10 U.S.C. §2533a) requires the US Department of Defense to buy clothing, fabric, tents, hand tools, and body armor from 100% domestic sources — fiber grown or produced in the US, and end-item manufactured in the US. Originally passed in 1941 to protect the textile industry during wartime, it remains active and shapes every DoD body-armor contract.
For LE procurement — including federal LE — Berry typically doesn't apply. For DoD and DoD-partnered procurements, it's a hard gate.
What "domestic" means for body armor
Berry compliance for body armor means every layer of the product is US-sourced:
- Fiber — grown or produced in the US (Kevlar made in Richmond, VA = compliant; Twaron made in NL = not)
- Prepreg / composite fabric — woven and resin-impregnated in the US
- Ceramic (for hard plates) — mined, processed, and formed in the US
- Plate backing, carrier materials, thread, hardware — all US-sourced
- Final assembly — performed in the US
A product built with 99% US content and 1% foreign content is not compliant. There's no de minimis threshold.
The fiber sourcing problem
Berry compliance is hardest at the fiber layer because the global fiber supply is partially non-US:
| Fiber | Producer | Domestic? | Berry-compliant |
|---|---|---|---|
| Kevlar K29/K49/K129 | DuPont, Richmond + Spruance VA | Yes | ✓ |
| Twaron | Teijin, Arnhem NL | No | ✗ |
| Alkex | Hyosung, South Korea | No | ✗ |
| Heracron | Kolon, South Korea | No | ✗ |
| Dyneema (NC) | Avient, Stanley NC | Yes | ✓ |
| Dyneema (NL) | Avient, Geleen NL | No | ✗ |
| Spectra | Honeywell, NJ | Yes | ✓ |
The Dyneema case is especially important — same brand, two production sites, different compliance. OEMs must trace to the specific lot's production facility, not just the brand.
Ceramic sourcing
For hard armor plates, Berry also applies to the ceramic:
- US-made ceramics — 3M Ceradyne (CA), CoorsTek (CO), II-VI/Coherent (PA) → compliant
- Foreign-made ceramics — Morgan Advanced Materials (UK primary ops), Saint-Gobain NorPro (French primary ops) → may not be compliant unless specific US-operations lots
The OEM two-line model
Major OEMs supplying both DoD and commercial markets typically maintain two parallel production lines:
- Berry-compliant line — uses only US-sourced fiber, prepreg, ceramic. Reserved for DoD contracts. Higher cost.
- Commercial line — mixed sourcing (Twaron OK, foreign Dyneema OK, Korean aramid OK). Lower cost, broader fiber selection.
The same OEM's commercial offering may be materially different from its Berry offering in weight, thickness, or price.
Specified in DoD contracts
DFARS 225.7002 implements Berry for DoD contracts. A DoD body-armor contract typically reads:
"The Contractor agrees that articles of food, clothing, tents, tarpaulins, or covers, cotton and other natural fiber products, woven silk or woven silk blends, spun silk yarn for cartridge cloth, synthetic fabric or coated synthetic fabric (including all textile fibers and yarns that are for use in such fabrics), canvas products, or wool (whether in the form of fiber or yarn or contained in fabrics, materials, or manufactured articles), or any item of individual equipment (Federal Supply Classes 8455, 8460, or 8465) manufactured in whole or in part of the above items, delivered under this contract shall be a domestic end product (as that term is defined in the clause at 252.225-7002)."
The "fibers and yarns that are for use in such fabrics" clause is what pulls fiber sourcing into scope.
Exceptions
Berry has limited exceptions:
- De minimis purchases below simplified acquisition thresholds
- Exceptional circumstances — waivers require DoD Secretary-level approval, rare
- Non-availability — if no US source exists, a waiver can be granted (rare for armor fibers)
Most armor contracts don't qualify for any of these.
For LE procurement
Berry does not apply to LE procurement. State / municipal / county LE agencies can procure armor built on any fiber. BVP grant reimbursement doesn't impose Berry.
Federal LE (FBI, DEA, ATF, USMS, etc.) sometimes writes Berry-style requirements into procurement specs even when not legally required — as a domestic-supply-chain preference. This is agency-policy-level, not statute.
The consequence for OEMs
Berry is the single biggest differentiator between OEMs who win DoD contracts and those who don't. Maintaining a Berry-compliant production line requires:
- Exclusive Berry-compliant fiber supply (typically Kevlar + US Spectra)
- Separate inventory control to prevent cross-contamination
- Documentation for every lot's sourcing chain
- Periodic DoD audits
This overhead is why smaller OEMs typically focus on commercial LE markets; the Berry-compliant-capable OEMs are a smaller subset.