Frequently Asked Questions

DOT-regulated employers must randomly test a minimum percentage of their covered employees for drugs and alcohol each year, using a qualifying random pool and DOT-recognized methods. The specific minimum rates are set by the relevant DOT agency and can change, so programs should be reviewed against current requirements.

A consortium or pool is a group of employees, sometimes drawn from multiple companies, from which random selections are made to meet required testing rates. Pooling is common for owner-operators and smaller DOT-regulated employers, and it lets them satisfy minimum random testing rates without maintaining a large in-house program.

Yes, when it is administered correctly. Employers can conduct random testing as long as selection is truly random, applied consistently within a defined group, and compliant with applicable federal, state, and local law. DOT-regulated employers must follow specific federal requirements, and some states place additional limits on how results can be used.

Employees in a defined pool are chosen using a scientifically generated random process, so every person has an equal chance of selection at each draw. The selection is documented to keep the program defensible, and selected employees are notified and tested promptly to preserve the integrity of the random draw.

Random drug testing is a program in which employees are selected for drug or alcohol testing on an unannounced, scientifically random basis rather than on a fixed schedule. Because employees cannot predict when they will be selected, it works as an ongoing deterrent to substance use and helps maintain a drug-free workforce.

It can, if the employer specifies it or it is required by law. Many companies bundle a pre-employment drug test with a pre-employment physical to streamline onboarding and confirm candidates meet all employment conditions at once.

Yes. Our partner network of 6,500+ occupational health clinics, plus mobile collectors and on-demand kits, lets you screen candidates consistently across all of your locations through a single partner with streamlined reporting.

Yes. We offer instant saliva testing that returns negatives in about 10 minutes, plus on-site collections and on-demand kits so you can test candidates at your facility, at remote sites, or after hours instead of waiting on a clinic visit.

A non-negative screen is not an automatic failure. Our in-house Medical Review Officers review the result, and for safety-sensitive concerns they may work with the candidate and treating clinicians to determine whether there is a legitimate medical explanation before a final result is reported.

It depends on your policy and your state’s law. Marijuana laws vary widely, and several states limit how a positive marijuana result can be used in a hiring decision, especially for non-safety-sensitive roles. DOT-regulated positions follow federal rules regardless of state marijuana laws.

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