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The DoD uses a screening test that will confirm your use of THC if your urine contains over 50 nanograms per milliliter of urine. If you test negative you pass, the test goes no further. If you test positive via this screening test your urine is then sent thru a mass spectrometer which will confirm your use of THC if your urine contains more than 15 nanograms of THC.

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15y ago

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