The State Department maintains a Technical Alert List, also known as the sensitive major list, to guide their evaluation of visa submission.
Sorted by rate.
CRITICAL FIELDS LIST
A. CONVENTIONAL MUNITIONS: Technologies associated with:
――Warheads and other large caliber projectiles
――Reactive armor and warhead defeat systems
――Fusing and arming systems.
――Electronic countermeasures and systems
――New or novel explosives and formulations
――Automated explosive detection methods and equipment
B. NUCLEAR TECHNOLOGY: Technologies associated with
production and use of nuclear material for both peaceful and military applications. Included are technologies for:
――Enrichment of fissile material
――Reprocessing irradiated nuclear fuel to recover produced plutonium
――Production of heavy water for moderator material
――Plutonium and tritium handling
Also, certain associated technologies related to nuclear physics and/or nuclear engineering. Includes materials,equipment or technology associated with: