Ohio Chamber of Commerce's response to the opioid crisis includes an online, 5-module course. 

The five modules (13-16 min. per module) give an overview of the legal and operational issues an employer must consider in dealing with an employee’s use of opioids and other substances.

They include best practices around how, when and why to drug test; how to handle a situation if the employee confesses or is discovered to be using harmful substances; and much more. Although each module contains valuable information, it is not necessary that they be watched in order or in their entirety.