https://www.siliconvalley.com/2020/12/01/covid-19-u-s-travel-restrictions-state-by-state/

 With cases of Covid-19 reaching new heights in the United States, some states are having to adapt rapidly with their rules and regulations, especially in recent weeks.

If you wish to travel to another state, it is important to be updated on the latest statewide regulations. While some US states have no restrictions on travel, all their sites have important Covid-19 safety information, including possible face mask mandates in public settings. States without travel restrictions might still have mask mandates.