Legislation for Snow Tires in the USA
In the US there is no overlapping regulation for all its states which could force you to use winter tires in the winter time. The regulations can be different from region to region.
Nevertheless it is highly recommendable to use them if you drive in the northern states in the winter time (see map). Because there is no better way to have a safe drive when it is snowy, icy or cold and most of the tire specialists recommend them to. Above all their argument is that you will never have the same good handling of your vehicle with summer/all weather tires than you have with winter tires at cold weather conditions.
But there is definitely an existing law for TPMS in the US!!!