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Workplace Drug and  Alcohol Testing Services for A Safer Workforce

Protect your people. Reduce Risk. Shield Screening provides nationwide drug and alcohol testing services for employers, including DOT and non-DOT programs, pre-employment screening, random testing, post-accident testing, and compliance management through one centralized platform.

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Trusted by safety-sensitive, high-risk, and regulated employers.Healthcare, construction, manufacturing, and DOT-regulated organizations rely on Shield Screening for flexible drug testing programs that move fast, scale easily, and stay compliant.

What Are Drug and Alcohol Testing Services? 

Drug and alcohol testing services are workplace programs that help employers screen candidates and employees for substance use. These services include pre-employment, random, and post-accident testing to reduce risk and maintain compliance with DOT and non-DOT regulations. 

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Create a Safer, More Efficient Workforce.


Partner with Shield Screening for a nationwide, compliant drug and alcohol testing program that protects your people and your business. 

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Workplace Drug Testing FAQ

01

What is the difference between DOT and non-DOT drug testing?

DOT testing follows strict federal regulations (5-panel only, MRO review, split specimens, Clearinghouse reporting), while non-DOT testing allows employers flexibility in panel selection and procedures.

02

How long does marijuana stay in your system for a drug test?

Urine testing detects marijuana for 3-30 days, depending on frequency of use. Hair testing detects use for approximately 90 days.

03

Can employers test for marijuana in states where it's legal?

Most States with legal marijuana still allow pre-employment testing and testing for safety-sensitive positions, though some States restrict post-hire testing.

04

What happens if an employee tests positive?

The MRO contacts the employee to discuss prescription medications or medical explanations. If verified positive, the employer is notified to take appropriate action per company policy.

05

How long do drug test results take?

Negative results typically return in 24-48 hours. Non-negative results require MRO review and may take 3-5 business days.

06

What panels are included in standard drug testing?

There is no single “standard” drug test that applies to every employer. The most commonly referenced benchmark is the DOT 5-panel drug test, which is required for safety-sensitive positions regulated by the U.S. Department of Transportation.


Outside of DOT testing, drug screening panels vary based on industry, role, state laws, and company policy. Employers may choose expanded panels such as 7-panel, 10-panel, or 12-panel tests, and can select different specimen types, including urine, hair, or oral fluid.


Ultimately, a “standard” drug testing program is one that aligns with an organization’s compliance requirements, risk tolerance, and workplace safety goals.

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