We'll all be aware by now that central government has issued guidelines for businesses to reopen. The anomaly is, its up to local governors to issue orders validating central government advice or adjusting the advice as long as the end result is stricter. 

Chiang Mai police informed restaurant owners last night that they can't reopen until the CM governor issues the order. I note several restaurants advertising they will reopen on Sunday in CM, unless there's an order issued today,they are in for a shock.