On-Site and Mobile Drug and Alcohol Testing Services

Prepare for an authorized urine collection

Bring ID and the correct order. Follow the collector’s instructions and tell them promptly if you cannot provide the required specimen or need an accommodation. Use accurate contact details and keep the receipt. Do not alter the specimen or use detox products. The sample collected for a medical physical is not automatically a workplace drug-test sample, because the required documentation and handling differ.

Confirm the worksite collection plan

Before an on-site event, the employer should confirm authorized tests, trained collectors, appropriate space, specimen security, laboratory transport and result routing. Tell the coordinator about the number of workers, worksite hours and any accommodations. A mobile collection still needs the correct DOT or non-DOT procedure. Availability, service area and after-hours coverage require a current agreement rather than a general website promise.

Employment drug and alcohol testing

An employer-requested drug or alcohol test must match the employer’s actual order. Before the visit, establish whether the test is DOT-regulated or non-DOT, why it is required, which specimen is ordered and where the result must go. A clinical drug test, a home test and a workplace collection do not automatically satisfy the same requirement. Bring the authorization rather than choosing a panel by its size or name.

How employment drug and alcohol testing works

A workplace testing program separates collection, laboratory analysis, medical review and the employer’s decision. DOT procedures require the correct custody-and-control process and an authorized laboratory. A medical review officer, or MRO, reviews applicable laboratory findings and legitimate medical explanations. Alcohol testing has its own equipment, technician and confirmation procedures. A negative result does not certify general fitness for duty, and a positive screening result alone does not diagnose a substance-use disorder.

Eligibility: Employment drug and alcohol testing

The order may be for pre-employment, random, reasonable-suspicion, post-accident, return-to-duty or follow-up testing. These reasons have different program rules. DOT drug testing uses the substances specified in Part 40. A non-DOT 10-panel, instant screen, hair test or urine ETG alcohol test is not a substitute for the required DOT test. An employer’s non-DOT panel and state requirements must be confirmed separately, including whether cannabis testing is permitted for that role.

What to expect: Employment drug and alcohol testing

Check the authorized site, collection deadline, test reason and billing details with the employer or designated employer representative. Bring photo ID and the order. The collector confirms identity and follows the applicable collection process. Keep the collection receipt and the testing contact details. Respond promptly if the MRO contacts you for information. Ask the employer how it receives the final verified result and when you may start or resume work.

Preparing for your appointment

Follow the instructions on the actual order. Provide accurate contact information and have prescription records available for the MRO if requested. Keep medicines in their usual treatment plan unless your prescriber directs a change. Do not use detox products, substitute a specimen or attempt to alter the result. If you have difficulty providing the required specimen or need an accommodation, tell the collector immediately so the proper procedure can be followed.

Risks and when to seek help

Do not drive or perform safety-sensitive duties while impaired. After an accident, medical care comes first. The employer must determine the applicable testing trigger and route without delaying necessary treatment. Prescription use can require both result verification and a separate safety assessment. In DOT programs, state permission to use marijuana does not override federal testing rules. Speak with your prescriber about treatment safety; the collection visit is not a place to make an abrupt medication change.

Follow-up and treatment review

A collection being finished does not mean the result is final. Laboratory work, specimen questions and MRO review may take additional time. DOT employees with a verified positive or other covered violation must follow the applicable substance-abuse-professional and return-to-duty process before resuming safety-sensitive duties. A new self-paid negative test does not erase that requirement. Ask the MRO immediately about any right to test the split specimen and the applicable deadline. Non-DOT disputes follow the actual program and law.

Appointments, costs and coverage

Before arranging an employer collection at Nao, share the written test order. Confirm the exact panel, specimen, DOT status, laboratory route, MRO arrangements, hours, reporting and cost before attending. For a group, mobile or after-hours collection, ask which sites, times and qualified staff are available under your employer’s agreement. DOT oral-fluid collection also requires the current approved laboratory and device pathway; the regulation’s availability does not establish that a particular clinic offers it. TLC drug testing follows TLC’s separate approved-site instructions.

Medical sources

• DOT 49 CFR Part 40 procedures
• DOT Part 40 section 40.85: Drugs tested
• DOT Part 40 section 40.151: MRO restrictions
• DOT Part 40 section 40.171: Split-specimen request
• DOT Employee Resources
• DOT Drug Testing Laboratories
• TLC Drug Testing Requirements