The Department of Health and Human Services (HHS) has released a notice which informs federal agencies about the laboratories and facilities certified to conduct drug testing using urine and oral fluid as per the Mandatory Guidelines for Federal Workplace Drug Testing Programs. As of now, there are no labs certified for oral fluid testing, but several are certified for urine testing, including those in Canada, which are overseen by the standards of the Department of Transportation (DOT). The list includes details about each certified laboratory and highlights a facility that is withdrawing from the certification program.
Simple Explanation
The government has a list of special places that check for drugs in pee, but not in spit. One of these places is going to stop being on the list soon.