What a DER Must Do When a Drug Test Comes Back Positive
July 8, 2026
Receiving a positive drug test result is one of the highest-stakes moments in a DOT drug and alcohol testing program.
Practical guidance on workplace drug and alcohol testing, DOT compliance, and regulatory requirements. Our blog covers real-world processes, common compliance challenges, and industry updates to help employers navigate highly regulated testing programs with confidence.
Receiving a positive drug test result is one of the highest-stakes moments in a DOT drug and alcohol testing program.
A refusal to test is one of the most consequential events in a DOT drug and alcohol testing program. Under
A Designated Employer Representative (DER) is an employee of a DOT-regulated employer who is authorized by the employer to take
Workplace drug screening follows a standardized chain-of-custody process designed to produce legally defensible results. Understanding how each step works, from
Choosing between urine, hair, and saliva drug testing comes down to what you need to detect, how far back, and
In 2018, the Farm Bill separated hemp from marijuana under the law, making CBD products with less than 0.3% THC
Reasonable suspicion testing is a testing category permitted under 49 CFR Part 40 and required by DOT agency regulations when
A DOT drug and alcohol testing program involves multiple parties, each with a defined role under 49 CFR Part 40.
The 10-panel drug test is one of the most common configurations for employer-based screening, particularly in industries where the standard
If you manage a DOT-regulated workforce, you have likely seen the term “5-panel drug test” on paperwork, lab reports, or