Confirmation Test. Testing shall screen, at a minimum, for the following substances and test results must be below the following levels to result in a negative: Drugs Tested (EMIT) Initial Test Cut-off Level (ng/ml) (GC/MS)Confirmation Test Cut-off Level (ng/ml) Amphetamines 1000 500 Barbiturates 300 200 Benzodiazepines 300 200 Cannabinoids (Marijuana β THC) 50 15 Cocaine Metabolite 300 150 Methadone 300 200 Opiates 2000 2000 Phencyclidine (PCP) 25 25 Propoxyphene 300 200 Breath/Blood Alcohol Content (BAC) .04% .04%
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