22 CFR §121.1 Category XIV
USML Category XIV: Toxicological Agents, Including Chemical Agents, Biological Agents, and Associated Equipment
USML Category XIV covers chemical warfare agents (CWAs), biological warfare agents (BWAs), toxins, and the equipment specifically designed for their weaponization, delivery, or defense against them. This is one of the most restricted categories in the USML, with controls that align tightly with the Chemical Weapons Convention (CWC) and the Biological Weapons Convention (BWC). Category XIV also covers protective detection equipment and medical countermeasures specifically designed for chemical and biological defense.
Reviewed by
Founder, ITAR Screen
Trenton is the founder of ITAR Screen and Gideon Dynamics. He built ITAR Screen to give defense contractors and dual-use exporters fast, auditable USML classification and denied-party screening without the complexity of enterprise compliance platforms.
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Coverage
What Category XIV covers
USML Category XIV covers chemical warfare agents (CWAs), biological warfare agents (BWAs), toxins, and the equipment specifically designed for their weaponization, delivery, or defense against them. This is one of the most restricted categories in the USML, with controls that align tightly with the Chemical Weapons Convention (CWC) and the Biological Weapons Convention (BWC). Category XIV also covers protective detection equipment and medical countermeasures specifically designed for chemical and biological defense.
Common controlled items
- Nerve agents (sarin, VX, novichok agents) and blister agents (mustard, lewisite)
- Biological warfare agents and toxins (anthrax, ricin, botulinum)
- Chemical agent delivery munitions and dispersal systems
- Chemical agent detectors calibrated for CWA threat levels
- NBC collective protection filtration systems for military vehicles
- Medical countermeasure auto-injectors (atropine/2-PAM kits)
- Decontamination equipment designed for CWA-contaminated military assets
EAR / ECCN
EAR overlap
Dual-use chemical precursors and biological agents have overlapping controls under EAR (ECCN 1C350 for chemicals, 1C351 for biological agents). Quantities or configurations specifically designed for weapons use, or equipment designed to optimize agent lethality or delivery, are ITAR-controlled regardless of the agent's commercial availability.
Licensing
Typical license requirements
Category XIV items face a strong presumption of denial for export to virtually all countries. CWC-prohibited chemicals are subject to international treaties that effectively prohibit transfer. Any export of even dual-use defensive chemical/biological detection equipment requires extensive policy review by DDTC in consultation with other agencies.
Regulations
Key citations
22 CFR §121.1 Category XIV22 U.S.C. §5604 — Chemical and Biological Weapons Control Act22 CFR §126.1 — Prohibited exports to sanctioned countriesChemical Weapons Convention — Schedule 1, 2, 3 chemicals
Always verify against the current version of the USML (22 CFR Part 121) on the eCFR. ITAR Screen classifications are versioned against the USML reference at the time of the call.
Primary sources
- DDTC — 22 CFR Parts 120–130 (ITAR)
Official ITAR text administered by the State Dept. Directorate of Defense Trade Controls
- BIS — 15 CFR Parts 730–774 (EAR)
Export Administration Regulations, including the Commerce Control List (CCL)
- OFAC — Sanctions Programs and Country Information
Current SDN list, blocked persons, and active U.S. Treasury sanctions programs
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