DOT Rule 49 CFR Part 40 Section 40.90

Subpart F - Drug Testing Laboratories § 40.90 What criteria do laboratories use to establish that a urine specimen is invalid?

(a) As a laboratory, you must use the invalid test result criteria for the initial and confirmation testing as required by the HHS Mandatory Guidelines, and you...

DOT Rule 49 CFR Part 40 Section 40.88

Subpart F - Drug Testing Laboratories § 40.88 What criteria do laboratories use to establish that a urine specimen is dilute or substituted?

(a) As a laboratory, you must consider the primary specimen to be dilute when:

The creatinine concentration is greater than or...

DOT Rule 49 CFR Part 40 Section 40.86

Subpart F - Drug Testing Laboratories § 40.86 What is urine validity testing, and are laboratories required to conduct it?

(a) Specimen validity testing is the evaluation of the specimen to determine if it is consistent with normal human urine. The purpose of validity testing is to...

DOT Rule 49 CFR Part 40 Section 40.84

Subpart F - Drug Testing Laboratories § 40.84 How long does the laboratory retain specimens after testing?

(a) As a laboratory testing the primary specimen, you must retain a specimen that was reported with positive, adulterated, substituted, or invalid results for a minimum of one year....

DOT Rule 49 CFR Part 40 Section 40.82

Subpart F - Drug Testing Laboratories § 40.82 What drugs do laboratories test for?

As a laboratory, you must test for the following five drugs or classes of drugs in a DOT drug test. You must not test “DOT specimens” for any other drugs.

(a) Marijuana...

DOT Rule 49 CFR Part 40 Section 40.79

Subpart E - Specimen Collection § 40.79 How is the collection process completed?

(a) As the collector, when using the paper CCF, you must do the following things to complete the collection process. You must complete the steps called for in paragraphs (a)(1) through (7) of this section in...

DOT Rule 49 CFR Part 40 Section 40.74

Subpart E - Specimen Collections § 40.74 How does the collector prepare the oral fluid specimens?

(a) The collector follows the manufacturer's instructions to package the split specimen collections.

(b) A volume of at least 1 mL of undiluted (neat) oral fluid is collected...

DOT Rule 49 CFR Part 40 Section 40.72

Subpart E - Specimen Collections § 40.72 What steps does the collector take in the collection process before the employee provides an oral fluid specimen?

(a) The collector requests that the employee open the employee's mouth, and the collector inspects the oral cavity to ensure that it is...

DOT Rule 49 CFR Part 40 Section 40.48

Subpart D - Collection Sites, Forms, Equipment and Supplies Used in DOT Urine and Oral Fluid Collections § 40.48 What steps must operators of collection sites and collectors take to protect the security and integrity of oral fluid collections?

(a) Collectors and operators of collection...

DOT Rule 49 CFR Part 40 Section 40.44

Subpart D - Collection Sites, Forms, Equipment and Supplies Used in DOT Urine and Oral Fluid Collections § 40.44 What materials are used to collect urine specimens?

For each DOT drug test, you must use a collection kit meeting the requirements of Appendix A of this part.

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