Material Threat Determination (MTD) 2
Material Threat Determination (MTDs) and Population Threat Assessments (PTAs) Issued by the Department of Homeland Security
Material Type
Material Unaccounted For
Material unaccounted for (MUF)
Material, Combustible 1
Material, Combustible 2
Material, Compatible 3
Material, Corrosive
Material, Depleted
Material, Desolventized
Material, Enriched
Material, Explosive
Material, Flood Damage-Resistant
Material, Garment
Material, Hazardous
Material, Hazardous Production (HPM)
Material, Health Hazard
Material, High Explosive
Material, Highly Toxic
Material, Incompatible 1
Material, Incompatible 2
Material, Limited-Combustible
Material, Low Explosive
Material, Noncombustible 1
Material, Noncombustible 2
Material, Noncombustible 3
Material, Noncombustible 4
Material, Noncombustible 5
Material, Physical Hazard
Material, Protective Clothing
Material, Spent
Material, Steel or Other Equivalent
Material, Toxic 1
Material, Toxic 2
Material, Unaccounted For
Material, Unstable (Reactive)
Material, Visor
Material, Water-Reactive
Materials 1