06/04/2026
Once the official test is scheduled, the most common question that pops up is "how long does it take to get below 50 ng/ml", with an obligatory follow-up "what even is ng/ml"?
This standard cutoff for all screening drug tests (including DOT-regulated) is a clear tell whether someone is using THC or not.
Read more about the effective (and not so effective) ways to get under this threshold in our detailed guide below:
Learn what 50 ng/mL means on a THC urine test, why it matters, realistic detection timelines by user type, and how at-home testing helps you track your status.