22 CFR §121.1 Category XIX
USML Category XIX: Gas Turbine Engines and Associated Equipment
USML Category XIX covers gas turbine engines and associated components specifically designed for military aircraft, ships, and vehicles — including turbofan, turbojet, turboprop, and turboshaft engines with military performance specifications. The category also captures hot-section components, engine control systems, and manufacturing technology for military turbine engines. This is a commercially significant category given the overlap between military and commercial aviation turbine technology.
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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 XIX covers
USML Category XIX covers gas turbine engines and associated components specifically designed for military aircraft, ships, and vehicles — including turbofan, turbojet, turboprop, and turboshaft engines with military performance specifications. The category also captures hot-section components, engine control systems, and manufacturing technology for military turbine engines. This is a commercially significant category given the overlap between military and commercial aviation turbine technology.
Common controlled items
- Military aircraft turbofan engines (F100, F110, F135, F404)
- Military helicopter turboshaft engines (T700, T408)
- Turboprop engines for military transport and surveillance aircraft
- Gas turbine engines for naval vessels and military ground vehicles
- Military-specification hot section components (blades, vanes, combustors)
- Full authority digital engine controls (FADEC) for military engines
- Engine test cells and equipment configured for military turbine testing
EAR / ECCN
EAR overlap
Commercial aviation gas turbine engines and their standard components are EAR-controlled under ECCN 9A001 or related entries. Military turbine engines become ITAR-controlled based on performance specifications (thrust-to-weight ratio, temperature capability, durability requirements) and their qualification under military specifications. Technology for manufacturing advanced turbine components is controlled under ECCN 9E003 when not ITAR-controlled.
Licensing
Typical license requirements
DSP-5 licenses required for engine exports. Manufacturing license agreements are required for licensed production arrangements. Engine technology transfers raise significant EAR and ITAR issues simultaneously, and co-production arrangements typically require both TAAs and technology transfer licenses.
Regulations
Key citations
22 CFR §121.1 Category XIX22 CFR §124 — Manufacturing License Agreements22 CFR §123 — Export Licenses
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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