Drug policies regarding marijuana use vary by state and company, but it is still illegal under federal law. Companies with zero-tolerance drug policies seem to be protected against reimbursement claims for medical marijuana because marijuana use is against its company policy and it's a federal crime.

• Have you ever worked for an organization that had a zero-tolerance drug policy? If so, how did the company manage this policy? If not, do you think your employer should have developed such a policy?
• What should HR professionals and line managers do to better educate themselves about the impact of marijuana use on workers' compensation?