Answer

What are you the current number of states where marijuana is legal (CBD only or Mixed)?

Drug and Alcohol Testing related

What is an electronic chain of custody?

An electronic Custody and Control Form, also known as an eCCF, is an electronic version of the traditional document used for drug test ordering, specimen collection processing, and chain of custody documentation for workplace drug testing. ECCFs offer additional benefits, such as speeding up turnaround times by up to 25% and preventing common user errors associated with paper forms.

Cut-off levels have been established to rule out passive or second hand smoke inhalation.  Clinical studies have been conducted to establish the cut-offs, and the studies concluded that it is extremely unlikely for an individual to test positive due to passive or second hand smoke inhalation.