**Subpart F - Drug Testing Laboratories**

**§ 40.87   What are the cutoff concentrations for initial and
confirmation tests?**

\(a\) As a laboratory, you must use the cutoff concentrations displayed
in the following table for initial and confirmation drug tests. All
cutoff concentrations are expressed in nanograms per milliliter (ng/mL).
The table follows:

+-------------------------+-----------------+--------------------------+
| **Type of Drug or       | **Initial       | **Confirmation Test**    |
| Metabolite**            | Test**          |                          |
+-------------------------+-----------------+--------------------------+
| (1) Marijuana           | > 50            | > 15                     |
|     metabolites         |                 |                          |
|                         |                 |                          |
| \(i\)                   |                 |                          |
| Delta-9-tetrahydro      |                 |                          |
| cannabinol-9-carboxylic |                 |                          |
| acid (THC)              |                 |                          |
+-------------------------+-----------------+--------------------------+
| \(2\) Cocaine           | > 300           | > 150                    |
| metabolites             |                 |                          |
|                         |                 |                          |
| (Benzoylecgonine)       |                 |                          |
+-------------------------+-----------------+--------------------------+
| \(3\) Phencyclidine     | > 25            | > 25                     |
| (PCP)                   |                 |                          |
+-------------------------+-----------------+--------------------------+
| \(4\) Amphetamines      | > 1000          | > 500                    |
|                         |                 |                          |
| \(i\) Amphetamine       |                 | 500 (Specimen must also  |
|                         |                 |                          |
| \(ii\) Methamphetamine  |                 | contain amphetamine      |
|                         |                 |                          |
|                         |                 | at a concentration of    |
|                         |                 |                          |
|                         |                 | greater than or equal    |
|                         |                 |                          |
|                         |                 | to 200 ng/mL.            |
+-------------------------+-----------------+--------------------------+
| \(5\) Opiate            | > 2000          | > 2000                   |
| metabolites             |                 | >                        |
|                         |                 | > 2000                   |
| \(i\) Codeine           |                 | >                        |
|                         |                 | > 10                     |
| \(ii\) Morphine         |                 |                          |
|                         |                 | Test for 6-AM in the     |
| \(iii\)                 |                 |                          |
| 6-acetylmorphine        |                 | specimen. Conduct this   |
|                         |                 | test only                |
|                         |                 |                          |
|                         |                 | when specimen contains   |
|                         |                 | morphine                 |
|                         |                 |                          |
|                         |                 | at a concentration       |
|                         |                 | greater than             |
|                         |                 |                          |
|                         |                 | or equal to 2000 ng/mL.  |
+-------------------------+-----------------+--------------------------+

\(b\) On an initial drug test, you must report a result below the cutoff
concentration as negative. If the result is at or above the cutoff
concentration, you must conduct a confirmation test.

\(c\) On a confirmation drug test, you must report a result below the
cutoff concentration as negative and a result at or above the cutoff
concentration as confirmed positive.

\(d\) You must report quantitative values for morphine or codeine at
15,000 ng/mL or above.