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When collecting a DOT urine specimen for a DOT drug test should a collector shake the specimen to look for excessive foam or bubbles?

A collector may shake the specimen for the purpose indicated in the DOT Collector Guidelines (Jan 2018) with the assumption that they know what they’re looking for (they’ve had training to distinguish the differences) – and they should do so only when it is in a sealed container.  Shaking might indicate excessive foam which would be suspicious […]

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What is a monitored collection in the DOT specimen collection process?

Monitored Collections DOT If you use a multi-stall restroom, you must either: Secure all sources of water and other substances that could be used for adulteration and substitution (e.g., water faucets, soap dispensers) and place bluing agent in all toilets or secure the toilets to prevent access; or Conduct all collections in the multi-stall facility […]

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