ECCN 1C001
NSMTATMaterials specially designed for absorbing electromagnetic radiation, or intrinsically conductive polymers, as follows .
What This ECCN Covers
ECCN 1C001 controls materials specially designed to absorb electromagnetic radiation (radar-absorbing materials, or "RAM") and intrinsically conductive polymers, defined by the frequency ranges and properties in the entry. These materials reduce radar and electromagnetic signatures and also appear in legitimate uses such as EMC testing and anechoic chambers. The entry is controlled for National Security, Missile Technology, and Anti-Terrorism reasons.
Who needs to check this?
Producers and exporters of radar-absorbing coatings and structures, EMC/anechoic-chamber absorber materials, and intrinsically conductive polymer products.
Compliance tip
Control turns on the specified frequency-absorption ranges and material properties — verify your product against the entry, since general-purpose EMI materials may fall outside. Because Missile Technology applies, license exceptions are generally unavailable; classify carefully and apply EAR Part 744 end-use diligence.
Items Covered
- a.Materials for absorbing frequencies exceeding 2 × 108 Hz but less than 3 × 1012 Hz.
- a.Hair type absorbers, constructed of natural or synthetic fibers, with non-magnetic loading to provide absorption;
- b.Absorbers having no magnetic loss and whose incident surface is non-planar in shape, including pyramids, cones, wedges and convoluted surfaces;
- c.Planar absorbers, having all of the following:
- a.Plastic foam materials (flexible or non-flexible) with carbon-loading, or organic materials, including binders, providing more than 5% echo compared with metal over a bandwidth exceeding ±15% of the center frequency of the incident energy, and not capable of withstanding temperatures exceeding 450 K (177 °C); or
- b.Ceramic materials providing more than 20% echo compared with metal over a bandwidth exceeding ±15% of the center frequency of the incident energy, and not capable of withstanding temperatures exceeding 800 K (527 °C);
- d.Planar absorbers made of sintered ferrite, having all of the following:
- e.Planar absorbers having no magnetic loss and fabricated from 'open-cell foams' plastic material with a density of 0.15 grams/cm3 or less.
- b.Materials not transparent to visible light and specially designed for absorbing near-infrared radiation having a wavelength exceeding 810 nm but less than 2,000 nm (frequencies exceeding 150 THz but less than 370 THz);
- b.Materials not transparent to visible light and specially designed for absorbing near-infrared radiation having a wavelength exceeding 810 nm but less than 2,000 nm (frequencies exceeding 150 THz but less than 370 THz);
- a."Laser" marking of polymers; or
- b."Laser" welding of polymers.
- c.Intrinsically conductive polymeric materials with a 'bulk electrical conductivity' exceeding 10,000 S/m (Siemens per meter) or a 'sheet (surface) resistivity' of less than 100 ohms/square, based on any of the following polymers:
- 1. Polyaniline;
- 2. Polypyrrole;
- 3. Polythiophene;
- 4. Poly phenylene-vinylene; or
- 5. Poly thienylene-vinylene.
Control Reasons
Items controlled for national security reasons under multilateral export control regimes.
Items controlled under the Missile Technology Control Regime (MTCR).
Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.
Disclaimer
This information is for reference only. For official classifications, consult BIS or a qualified export control professional.