MA H159

Prohibits employers from refusing to hire, discharging, or discriminating against employees based solely on the presence of THC or marijuana metabolites in drug tests

Allows employer action only when reasonable suspicion exists that an employee was impaired by marijuana at the workplace or during work hours

Defines "safety sensitive position" as one where impairment could cause actual, immediate, and permanent physical injury or loss of life

Exempts safety sensitive positions and situations where compliance would violate federal law, regulations, contracts, or funding agreements

Permits employer action if cannabis use prevents an employee from maintaining licenses or credentials required for their position