ECCN.DEV by Cancelli

6A006 Category 6A

“Magnetometers”, “magnetic gradiometers”, “intrinsic magnetic gradiometers”, underwater electric field sensors, “compensation systems”, and “specially designed” “components” therefor, as follows (see List of Items Controlled).

Category 6: Sensors and Lasers

Reasons for control

Country chart

ControlColumn
AT applies to entire entryAT 1
NS applies to entire entryNS 2

List-based license exceptions

ExceptionAs stated in the entry
GBS N/A
LVS $1500, N/A for 6A006.a.1; “Magnetometers” and subsystems defined in 6A006.a.2 using optically pumped or nuclear precession (proton/Overhauser) having a 'sensitivity' lower (better) than 2 pT (rms) per square root Hz; and 6A006.d, and 6A006.e.

Items

  1. a. “Magnetometers” and subsystems, as follows:
  2. a.1. “Magnetometers” using “superconductive” (SQUID) “technology” and having any of the following:
  3. a.1.a. SQUID systems designed for stationary operation, without “specially designed” subsystems designed to reduce in-motion noise, and having a 'sensitivity' equal to or lower (better) than 50 fT (rms) per square root Hz at a frequency of 1 Hz; or
  4. a.1.b. SQUID systems having an in-motion-magnetometer 'sensitivity' lower (better) than 20 pT (rms) per square root Hz at a frequency of 1 Hz and “specially designed” to reduce in-motion noise;
  5. a.2. “Magnetometers” using optically pumped or nuclear precession (proton/Overhauser) “technology” having a 'sensitivity' lower (better) than 20 pT (rms) per square root Hz at a frequency of 1 Hz;
  6. a.3. “Magnetometers” using fluxgate “technology” having a 'sensitivity' equal to or lower (better) than 10 pT (rms) per square root Hz at a frequency of 1 Hz;
  7. a.4. Induction coil “magnetometers” having a 'sensitivity' lower (better) than any of the following:
  8. a.4.a. 0.05 nT (rms)/square root Hz at frequencies of less than 1 Hz;
  9. a.4.b. 1 × 10−3 nT (rms)/square root Hz at frequencies of 1 Hz or more but not exceeding 10 Hz; or
  10. a.4.c. 1 × 10−4 nT (rms)/square root Hz at frequencies exceeding 10 Hz;
  11. a.5. Fiber optic “magnetometers” having a 'sensitivity' lower (better) than 1 nT (rms) per square root Hz;
  12. b. Underwater electric field sensors having a 'sensitivity' lower (better) than 8 nanovolt per meter per square root Hz when measured at 1 Hz;
  13. c. “Magnetic gradiometers” as follows:
  14. c.1. “Magnetic gradiometers” using multiple “magnetometers” controlled by 6A006.a;
  15. c.2. Fiber optic “intrinsic magnetic gradiometers” having a magnetic gradient field 'sensitivity' lower (better) than 0.3 nT/m (rms) per square root Hz;
  16. c.3. “Intrinsic magnetic gradiometers”, using “technology” other than fiber-optic “technology”, having a magnetic gradient field 'sensitivity' lower (better) than 0.015 nT/m (rms) per square root Hz;
  17. d. “Compensation systems” for magnetic and underwater electric field sensors resulting in a performance equal to or better than the control parameters of 6A006.a, 6A006.b, and 6A006.c; and
  18. e. Underwater electromagnetic receivers incorporating magnetic field sensors specified by 6A006.a or underwater electric field sensors specified by 6A006.b.

Related controls

See also 6A996. This entry does not control instruments “specially designed” for fishery applications or biomagnetic measurements for medical diagnostics.

Notes

Technical Note: For the purposes of 6A006, 'sensitivity' (noise level) is the root mean square of the device-limited noise floor which is the lowest signal that can be measured.

Source: eCFR, version 2026-08-01, retrieved 2026-08-20T04:04:59+00:00.