Zero-Tolerance® Test Threshold Comparison Table (Screen/Confirm)
| Drug Class |
DOT/Routine Testing (ng/mL) |
Zero-Tolerance Drug Testing® (ng/mL) |
| Amphetamines |
500/250 |
500/250* |
| Barbiturates |
300/200 |
200/100 |
| Benzodiazepines |
300/200 |
200/100 |
| Cocaine/Crack |
150/100 |
100/50 |
| Marijuana |
50/15 |
20/5 |
| Opiates (Narcotics) |
2,000/2,000 |
100/100 |
| Phencyclidine (PCP) |
25/25 |
20/10 |
*Also includes MDMA (Ecstasy), MDEA (Eve), MDA and PMA at a 250 ng/mL screening threshold and a 100 ng/mL confirmation threshold.