Primary specimen.

Primary specimen. In drug testing, the urine specimen bottle that is opened and tested by a first laboratory to determine whether the employee has a drug or drug metabolite in his or her system; and for the purpose of validity testing. The primary specimen is distinguished from the split specimen, defined in this section.

Source

49 CFR § 40.3

---

Scoping language

In this part, the terms listed in this section have the following meanings:

---

Is this correct? or