The California legislature has advanced a bill that would allow the state’s medical regulators to punish doctors for spreading false information about the COVID-19 pandemic, such as vaccine efficacy claims, drawing complaints that it could violate doctors’ freedom of speech.

The bill, AB 2098, which passed the state Senate on Monday night, would give the Medical Board of California and the Osteopathic Medical Board of California, the agencies that license physicians, the ability to suspend or revoke doctor’s state licenses for spreading COVID-19 disinformation or misinformation, which is vaguely defined as information that goes against “contemporary scientific consensus.”