Oral Fluid Testing Home › Forums › U.S. DOT Questions › Oral Fluid Testing This topic has 0 replies, 1 voice, and was last updated 5 years, 11 months ago by Donna Nordstrom. Viewing 1 post (of 1 total) Author Posts February 13, 2020 at 8:04 am #62539 Donna NordstromParticipant I noticed that SAMHSA has approved oral fluid testing in the US. Does DOT allow oral fluid testing yet? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In Log in / Register