On-site drug testing for small employers
A large fleet has a testing contract and a clinic down the road. A small employer has a driver who needs a pre-employment test by Thursday, a crew on a site forty minutes from anywhere, or a post-incident collection at seven in the evening. A mobile collector solves the where and the when. What this guide covers is everything else that has to be in place for that collection to count.
Written and maintained by the PhlebFlow team. Fees come from live listings and regenerate on every release; licensing rules come from the same source the signup form enforces. Reviewed by the directory team, not by a clinician — this is logistics, not medical advice. How these guides are made · Last reviewed: September 2026
DOT or non-DOT: decide this first
If the role is safety-sensitive under a federal transportation rule (commercial drivers, certain aviation, rail, transit and pipeline roles), the test is a DOT test: a federal procedure, a federal custody form, a laboratory certified for it and a Medical Review Officer who reviews every result before you see it. The collector must have completed the DOT collector qualification, and a breath alcohol test needs a separate technician qualification.
Everything else is a non-DOT test: your own written policy decides who is tested, when, for what, with what kind of specimen, and what happens with the result, inside what your state allows. A non-DOT collection can use the same custody discipline; the forms and the laboratory are the ones your program chooses.
Do not mix the two. A DOT role cannot be tested under a company policy, and a DOT form cannot be used for an employee who is not covered by a federal rule. If you are unsure which applies to a role, your third-party administrator or an occupational health advisor answers that before anyone is scheduled.
What the collector does, and what they never do
The collector verifies the donor's identity, explains the procedure, collects the specimen the program calls for (urine, oral fluid or hair, depending on the program), seals it in front of the donor, completes the custody form with the donor and ships the specimen to the laboratory named on the form. For a breath alcohol test, the technician runs the device and records the result on the alcohol form.
The collector does not run a program, choose a laboratory, read a result or decide anything about the employee. Results go from the laboratory to the MRO (for DOT) or to whoever your policy names (for non-DOT), and from there to you. PhlebFlow is a directory of independent collectors; it never receives, stores or forwards a result and is not part of any program.
What to have in place before you request a visit
A program. A written policy (non-DOT) or your DOT program documents, with the laboratory account and the custody forms it issues. A collector cannot supply the forms for your program.
A laboratory and, for DOT, an MRO. The laboratory account number goes on the custody form; the collector ships to the laboratory, not to you.
A private place at the site. A room that locks, with a toilet the collector can prepare for a urine collection (water off, bluing agent in the bowl) if the program requires it, and a table for the paperwork.
Notice to the employee. Whatever your policy and your state require before a collection: the consent, the reason (random, post-incident, reasonable suspicion) and who will see the result.
Identification. The donor needs a photo ID or an employer representative who can identify them in person.
Asking the right collector
On PhlebFlow, providers who list drug testing are stating that they offer the collection; the DOT collector qualification and the breath alcohol technician qualification have no public registry, so they appear on a profile as the provider declares them. Before you confirm, ask for the certificate of the qualification your program requires and the date of the training; a qualified collector has it to hand.
Ask also which laboratories they ship to regularly, what their turnaround is from request to on-site, whether they cover evenings and weekends, and what they charge per collection and per visit. Price is set by the provider and quoted to you; the platform takes no commission.
How a request reaches a collector
Pick "Employers and workplaces" on the organizations page: the request form opens with the workplace and drug testing already selected. Give the site ZIP, the date window, how many people, and your organization's name; keep employee names and anything about the case out of the form. A provider who covers that ZIP accepts and contacts you to confirm the program, the forms, the time and the price.
For a recurring arrangement (monthly randoms across sites, for example), say so in the notes of the first request. Providers who take on standing work confirm it directly with you, and the organization program in early access keeps those arrangements in one place.
Questions employers ask
Can the collector give me the result on the spot?↓
Not for a DOT test, where every result goes through the laboratory and the MRO. Some non-DOT programs use instant devices the collector reads on site; whether yours does is a choice in your policy, and an instant positive is normally sent for laboratory confirmation anyway.
Can one collector cover pre-employment, random and post-incident tests?↓
Yes, if their qualification matches your program and they cover your sites and hours. Post-incident collections have time limits set by the rule or your policy; ask the collector how fast they can be on site before you rely on them for that.
What about a breath alcohol test?↓
It needs a technician qualified on the device and the alcohol form, which is a separate qualification from the urine collector one. A provider who offers it names it among their certifications; ask for it the same way.
Is a mobile collector cheaper than sending employees to a clinic?↓
Per collection, usually not. Per hour of your employees' time and per site visit, often yes — the collector comes to the crew instead of the crew driving to a clinic one at a time. The provider's price is quoted before you confirm.
Sources
Where the rules in this guide come from. The figures come from the directory itself (see how these guides are made); the rules come from these.
- U.S. DOT — Office of Drug and Alcohol Policy and Compliance — The federal office behind the DOT testing procedure, collector qualification and the custody form.
- 49 CFR Part 40 — Procedures for Transportation Workplace Drug and Alcohol Testing Programs — The regulation itself: who may collect, how, and what travels with the specimen.
- OSHA — Bloodborne Pathogens standard (29 CFR 1910.1030) — Sharps, gloves, exposure control — what a professional is required to do around your blood.
Related guides
Request a collector for your workplace
The organizations page opens a request with the workplace and drug testing already selected; providers who cover the site accept and confirm with you.
PhlebFlow is a directory and logistics platform. It does not perform blood draws, order tests, operate a laboratory, or interpret results, and it gives no medical advice. The providers listed here are independent professionals and businesses, not employees or agents of PhlebFlow — confirm credentials, insurance and pricing with the provider you choose.