The final rule was published by the DOT on Monday, Nov. 13, 2017, and will go into effect on Jan. 1, 2018.
On Jan. 1, 2018, Truescreen-affiliated laboratories will update all DOT-required drug tests to include these new substances.
More information on this final rule can be found on here.
Source: Transportation.gov, 11/13/2017
Posted: November 13, 2017