How far back does a DOT drug test go? A DOT drug test has an average detection time frame of 1 – 30 days. This window period depends on the substance under abuse. Moreover, the detection time frame can vary depending on the duration over which an individual has been abusing the drug.
ArcPoint Labs of Martinez, an accredited lab for DOT drug tests, has explained in detail what a DOT test is and how far it goes. Find out the DOT test meaning and actual window period for various drugs.
What is a DOT Drug Test?
What does the DOT test mean? It is a mandatory drug test for employees working under DOT-regulated agencies. Employers order the test during employment screening or randomly while you are employed.
Furthermore, an employer can order the DOT drug test when you are returning to duty, after an accident, or when you suspect drug use. The DOT drug test is done on people in the following safety-sensitive occupations.
- Bus drivers
- Train dispatchers
- Commercial truck drivers
- US Coast Guard
- Airline pilots
- Air traffic controllers
- Pipeline emergency responders
- Train conductors
- Airline flight crew members
- Flight instructors
Is DOT drug testing urine or hair? Urine is the preferred sample for DOT drug testing. The sample collection process for urine is straightforward, hence convenient for labs and the individual being tested.
What is a DOT Drug Test For?
A DOT drug test determines whether an employee has been abusing drugs. Specifically, this drug test rules whether someone has a history of using amphetamines and marijuana. Moreover, this DOT-regulated drug test checks for phencyclidine, opiates, and cocaine.
How Far Back Does a DOT Drug Test Go?
How far back does a DOT drug test go? Typically, a DOT drug test’s window period depends on the substance you are testing for. For instance, the test can detect chronic marijuana use back to 30 days before the test. Nonetheless, this DOT drug test has a 3-day detection time frame for one-time marijuana use.
The following are window periods for other common drugs:
- Cocaine. 1 – 3 days
- Amphetamines. 2 – 3 days
- Opioids. 2 – 5 days
- Phencyclidine. 8 days
What’s the Difference Between a Regular Drug Test and a DOT Drug Test
Despite sharing similarities, a regular test is different from a DOT drug test in many ways. First, the DOT test is mandatory for employees. On the contrary, regular drug tests are ordered by some employers — not the DOT-regulated agencies.
Other common things that make the DOT test different from the standard drug tests include:
- Regulatory standards. What does the DOT test mean? DOT drug tests follow strict standards set by the Department of Transportation. On the contrary, the standards of a regular drug test depend on the agency requesting it.
- Substances tested. The DOT and regular drug tests differ in the matter of the drugs tested. For instance, the DOT test only checks for drugs listed by the Department of Transportation. The regular drug tests lack a list of specific drugs to be tested. As such, employers can use it to check for any drug of interest.
- Cut off levels. A DOT drug test uses set DOT drug testing cutoff levels to rule out whether an outcome is false or positive. The regular drug test uses general scientific standards to determine whether a result is positive or false.
ARCpoint Labs of Martinez, “Serving the East and North Bay,” Is Your Partner for Reliable Drug Testing
Our facility, Arcpoint Labs, is Martinez’s leading provider of drug testing. We run tests for various illicit substances with great accuracy. So, you can count on us whenever you need tests to make critical decisions.
What’s more? We are an accredited facility. That means we conduct tests following stringent regulations of various regulators like the Department of Transportation.
Contact us to schedule your DOT drug test today.
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