Legislative Democrats on Friday unveiled a bill that would require employers to ensure their workers and independent contractors are vaccinated against COVID-19 or face yet-unspecified fines.

Assembly Bill 1993 follows a proposal floated last fall, and quickly dropped, that would have required anyone entering a public establishment to show proof of COVID-19 vaccination. The current bill focuses on the workplace and would include an exemption for workers who have a medical condition or cite a deeply held religious belief. The bill, as introduced, applies to all employers regardless of size, and does not provide for regular employee testing as an alternative.