The key piece: *The language banning vaccine mandates or passports is thorough, but does provide a federal caveat. State agencies cannot require vaccinations for people to enter any public facility, "except as provided by federal law or as a condition of receiving federal Medicare or Medicaid funding."* Nice. And that provision makes sense - supremacy clause in the US Constitution would override any law the states put on their books, if they come into conflict. They didn't really need to put that provision into the bill.