Drugs, Alcohol and Smoking: Missouri

Federal law and guidance on this subject should be reviewed together with this section.

Author: XpertHR Editorial Team

Summary

• Missouri employers may discipline employees for alcohol and drug use at work. See Drugs and Alcohol.
• Missouri employers may prohibit marijuana use in the workplace even though medical and recreational use is legal in the state. See Marijuana.
• Employers may implement and enforce policies that prohibit the use, sale, possession, distribution, purchase and cultivation of drugs and alcohol in the workplace. See Drug and Alcohol Policies.
• The state's Employment Security Law regulates drug and alcohol testing to establish employee misconduct connected with a claim for unemployment benefits. See Drug and Alcohol Testing.
• Missouri's Indoor Clean Air Act prohibits smoking in public places, which includes workplaces. See Smoking.
• An employer must make reasonable efforts to prevent smoking in the workplace by posting appropriate signs. See Postings.
• Employers are not required to have a smoking policy but may implement one that prohibits smoking in the workplace. See Smoking Policies.