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Drugs, Alcohol and Smoking: Illinois

Drugs, Alcohol and Smoking requirements for other states

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

Author: XpertHR Editorial Team


  • Illinois employers may enforce drug-free workplace policies if applied in a nondiscriminatory manner. See Drugs and Alcohol.
  • Employers may prohibit marijuana use 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.
  • Employers are not prohibited from conducting workplace drug and alcohol testing programs. See Drug and Alcohol Testing.
  • The Smoke Free Illinois Act prohibits smoking in places of employment. See Smoking.
  • Employers are required to post "No Smoking" 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.
  • Chicago has requirements pertaining to smoking. See Local Requirements.