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What HR should prepare before an on-site drug testing event

Collections go smoothly when the room, the roster, and the order all match before the collector parks.

· All articles · Industries · FAQ

On-site drug testing saves time when the employer treats it like any other operational event: a defined space, a clear donor list, and someone authorized to sign custody paperwork. HR and operations usually own that prep; collectors bring discipline to execution.

Use this as a pre-visit checklist you can drop into an internal wiki. Adapt details to your policy, union agreements where applicable, and site safety rules.

Confirm program context before you publish a schedule

List whether each cohort is DOT or non-DOT, the reason for testing if not obvious (random batch, hiring event, follow-up plan), specimen type, and lab or TPA routing. Send that packet to your collection partner with the address, gate instructions, and after-hours escalation numbers.

If alcohol testing is possible, say so early—equipment and certified steps differ from drug-only visits.

Physical staging that respects donors and auditors

Provide a private area for collections and reliable restroom access for urine programs. Oral fluid still needs a quiet space away from break-room audiences. Industrial sites should confirm PPE, escort rules, and whether collectors may move between buildings.

Decide how donors are notified—supervisor cascade, scheduled appointments, or batched announcements—and keep messaging neutral. Panic invites no-shows and gossip.

People and paperwork

Name who signs as employer representative, who handles refusals per policy, and how you document completions for your TPA. For randoms, use the selection list your administrator issued; do not improvise substitutions without their rules.

After the visit, file custody copies and donor completion notes where your audit trail expects them—especially for regulated programs.

Put the logistics on our side

Share program type, locations, and timelines—we respond with coverage and scheduling options suited to employer operations.