Short answer: A rapid urine screen is read on site. Negative screening results are available in as little as 5 minutes, on eligible rapid non-DOT tests only.

• What you get: a preliminary screening result, not a laboratory result.
• If the screen is non-negative: the specimen needs laboratory confirmation and MRO review, which can add 1–3 business days.
• Not for DOT: DOT tests are always laboratory-based.

Disclaimer: a rapid screen is a preliminary result. It is not a laboratory-confirmed or MRO-verified result.