I am increasingly convinced that contradictory regulations that make it impossible even for people of goodwill to be in compliance are a feature, not a bug of the current system.
…Common sense dictates that any medication that carries with it a warning that it “may cause drowsiness” or that the patient should “use caution” if operating machinery may pose a risk in the workplace. It is for this reason that many employers adopt a policy requiring employees to self report the use of prescription pain killers. This is especially important in potentially dangerous workplaces such as manufacturing and construction.
In a recent action that defies common sense, the Equal Employment Opportunity Commission has taken the position that such policies are unlawful under the Americans With Disabilities Act. The ADA prohibits an employer from conducting “medical inquiries” without a business reason to do so. In EEOC v. Product Fabricators, Inc., an action in federal court in Minnesota, the EEOC required a manufacturing employer to abandon its policy of encouraging employees to inform supervisors if they are under the influence of narcotic pain killers such as Vicodin. The EEOC took the position that an employer cannot ask about prescription pain killer usage unless it has “objective” evidence that an employee is impaired on the job.
This places employers in a very difficult position….
Walter Olson also has comments at the link.