Casinos have recently come under fire as potential hotbeds of Covid-19 infection. At least tribal-run California casino wants to make sure its going above and beyond to prove that’s not the case.

The Sycuan Casino Resort in San Diego, California has updated its safety requirements for guests, getting much stricter about what types of face coverings are deemed acceptable. “Effective immediately, bandanas, gaiters and face coverings with valves are no longer allowed as viable face covering options,” their site now reads.

They won’t be refusing guests though. Eddike Ilko, the casino’s safety manager, has said that guests not wearing appropriate masks will be provided with one.

This requirement now goes a step beyond what either the county of San Diego or the State of California require. Even a simple bandana is fine with the government, but it’s not good enough for the casino. With guests having trouble adhering to social distancing norms, the new requirement had to come.