The Pregnant Workers Fairness Act (PWFA) will go into effect on June 27, 2023 which requires covered employers to provide "reasonable accommodations" to a worker's known limitations relating to pregnancy, childbirth or a related medical condition.  Reasonable accommodations are changes to the work environment or the way things are usually done at work.  Like the ADA, employers would not need to provide a reasonable accommodation if it would cause the employer undue hardship. 

Read more at: What You Should Know About the Pregnant Workers Fairness Act | U.S. Equal Employment Opportunity Commission (eeoc.gov)