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News Archive

Guidance

'Back to Basics' for Medical Review Officers

As an MRO you have an important and indispensable role in the DOT drug testing process.  You act as an independent and impartial 'gatekeeper' and you advocate for the accuracy and integrity...

Federal Regulation

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...

Federal Regulation

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...

Federal Regulation

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...

Federal Regulation

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...

Federal Regulation

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...

Federal Regulation

DOT Rule 49 CFR Part 40 Section 40.92

Subpart F - Drug Testing Laboratories

§ 40.92 What is oral fluid validity testing, and are laboratories required to conduct it?

(a) Specimen validity testing is the evaluation...

Data Set

Airport Codes (TXT)

About this Data

The Office of Aviation Analysis no longer maintains this list.  Please visit https://bts.gov for more assistance.

Federal Regulation

DOT Rule 49 CFR Part 40 Section 40.85

Subpart F - Drug Testing Laboratories

§ 40.85 What are the cutoff concentrations for urine drug tests?

(a) As a laboratory, you must use the cutoff concentrations...

Federal Regulation

DOT Rule 49 CFR Part 40 Section 40.87

Subpart F - Drug Testing Laboratories

§ 40.87 What validity tests must laboratories conduct on primary urine specimens?

As a laboratory, when you conduct validity testing...