Document ID: chunk:federal_register_of_legislation:F2017L00081:reg:16:p7
Version: federal_register_of_legislation:F2017L00081
Segment Type: reg
Provision Reference: reg 16 (pt 7/8)
Character Range: 99107–101935

than two degrees (for example, interferometer antenna);
 (11) radomes or electromagnetic antenna windows that:
 (i) incorporate radio frequency selective surfaces; or
 (ii) operate in multiple non‑adjacent frequency bands for radar applications; or
 (iii) incorporate a structure that is specially designed to provide ballistic protection from bullets, shrapnel, or blast; or
 (iv) have a melting point greater than 1,300°C and maintain a dielectric constant less than 6 at temperatures greater than 500°C; or
 (v) are manufactured from ceramic materials with a dielectric constant less than 6 at any frequency from 100 MHz to 100 GHz (MT if usable in rockets, SLVs, or missiles capable of achieving a range greater than or equal to 300 km; or if usable in drones or UAVs capable of delivering a payload of at least 500 kg to a range of at least 300 km. See note 9 to paragraph (a)); or
 (vi) maintain structural integrity at stagnation pressures greater than 6,000 pounds per square foot; or
 (vii) withstand combined thermal shock greater than 4.184 × 106 J/m2 accompanied by a peak overpressure of greater than 50 kPa (MT if usable in rockets, SLVs, missiles, drones, or UAVs capable of delivering a payload of at least 500 kg to a range of at least 300 km and usable in protecting against nuclear effects (for example, Electromagnetic Pulse (EMP), X‑rays, combined blast and thermal effects). See note 9 to paragraph (a));
 (12) underwater sensors (acoustic vector sensors, hydrophones, or transducers) or projectors, specially designed for systems controlled by paragraphs (a)(1) and (a)(2) of this category, having any of the following:
 (i) a transmitting frequency below 10 kHz for sonar systems;
 (ii) sound pressure level exceeding 224 dB (reference 1 mPa at 1 m) for equipment with an operating frequency in the band from 10 kHz to 24 kHz inclusive;
 (iii) sound pressure level exceeding 235 dB (reference 1 mPa at 1 m) for equipment with an operating frequency in the band between 24 kHz and 30 kHz;
 (iv) forming beams of less than 1° on any axis and having an operating frequency of less than 100 kHz;
 (v) designed to operate with an unambiguous display range exceeding 5,120 m;
 (vi) designed to withstand pressure during normal operation at depths exceeding 1,000 m and having transducers with any of the following:
 (A) dynamic compensation for pressure;
 (B) incorporating other than lead zirconate titanate as the transduction element;
 (13) parts or components containing piezoelectric materials which are specially designed for underwater hardware, equipment, or systems controlled by paragraph (c)(12);
 (14) tuners specially designed for systems and equipment in paragraphs (a)(4) and (b);
 (15) electronic assemblies and components, capable of operation at temperatures in excess of 125 °C and specially