When Does DOT Start Testing for Fentanyl? The 2026 Update That Can Protect (or Wreck) Your CDL
When does DOT start testing for fentanyl?
As of Feb 22, 2026, DOT has not issued a final rule, so there’s no official start date. Fentanyl testing is proposed (Sept 2, 2025). Until it’s final, the standard DOT test doesn’t include fentanyl.