| Recommended Cutoff Levels for Confirmation Tests | |
|---|---|
| Cannabinoids* | 15 ng/ml |
| Cocaine* | 150 ng/ml |
| Opiates* | 300 ng/ml |
| Amphetamines/ Methamphetamines* | 500 ng/ml |
| PCP* | 25 ng/ml |
| Benzodiazepines** | 250 ng/ml |
| Barbiturates** | 250 ng/ml |
| Methadone** | 250 ng/ml |
| *U.S. Department of Health and Human
Services Mandatory Guidelines for Testing Levels.
**Cutoff levels for these drugs are not included in the HHS guidelines because they may be legally prescribed. The cutoff levels cited are those recommended by the scientific community. Sources: Federal Register 59(11):29922. American Probation and Parole Association. Drug Testing Guidelines and Practices for Juvenile Probation and Parole Agencies. Washington, DC: U.S. Department of Justice, Office of Justice Programs, Office of Juvenile Justice and Delinquency Prevention, 1992. | |
From: Appendix C --Drug Identification and Testing in The Juvenile Justice System
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