From the FAQ- there's the answer
Q: Will I fail a drug test from taking CBD?
A: We have sold CannazALL™ CBD to thousands of customers and have only had a few mention that it showed up on a drug test. The main reason for this is because our CBD oil has a very minimal trace amount of THC that is legally allowed under the 2014 US Farm Bill and by the FDA (0.03% or under). However, we cannot guarantee that THC will not show up in a drug test, especially if a “Broad Spectrum” test is being used, which is the type of test that was used with the few that have stated a failed drug test. Typically the standard 8 panel drug tests administered at medical facilities exclude meaningless trace amounts of THC, but again there is no guarantee. You should surely consult with your doctor or whoever might be administering the tests prior to use.