Joint Statement between the U.S. Department of Transportation and the Mexican Secretariat of Infrastructure, Communications and Transportation:

Strong transportation links between Mexico and the United States are essential to our two countries and our economies. On Wednesday, President Lopez Obrador and Secretary Buttigieg discussed approaches to further strengthen these links, deepen our people-to-people ties, and support...

Diapositivas del seminario web: Identificando oportunidades de subvenciones “grants” discrecionales del USDOT

Este seminario web del 22 de mayo de 2023 mostró el Panel de subvenciones discrecionales del USDOT, una herramienta que facilita buscar y encontrar oportunidades de subvenciones según su tipo de proyecto, tipo de organización y otras consideraciones como los requisitos de pareo monetario. El...

'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 of the drug testing process. Your quality assurance reviews of the drug testing process strengthen...

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 of the specimen to determine if it is consistent with normal human oral fluid. The purpose of validity testing is...

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...

General