In mid-March Hawaii’s governor asked tourists not to come to the islands and then on March 26 imposed a 14 day quarantine on all arriving visitors. They couldn’t legally ban people from coming, but they could impose public health restrictions.
We’ve seen re-opening dates of August 1, and September 1, and now Hawaii is saying that visitors will be able to travel to Hawaii without 14 day quarantine starting October 15. In liqu of quarantine passengers will have to present a negative Covid test taken within 72 hours of arriving.