As of Oct. 1, 2012, 18 states have enacted some form of legislation decriminalizing or legalizing the use of medical marijuana under certain circumstances. (Along with Nevada, those states are Alaska, Arizona, California, Colorado, Connecticut, District of Columbia, Delaware, Hawaii, Maine, Michigan, Montana, New Jersey, New Mexico, Oregon, Rhode Island, Vermont and Washington.) Nevada is among the states that has decriminalized some aspects of medical marijuana use, and the Nevada medical marijuana provisions are set forth in NRS Chapter 453A. Employers in Nevada are trying to balance the need for a drug-free workplace, against with the rights of employees who …