[Alberta's Child]

There is no federal law of any kind regarding state sales taxes or the levying/collection thereof.

I believe Federal law would preclude a state from collecting a sales tax from a business located outside the state.

[DoodleDawg]

I believe Federal law would preclude a state from collecting a sales tax from a business located outside the state.

Then virtually every on-line retailer I deal with is breaking the law. They all collect sales taxes.

[IYAS9YAS]

I believe Federal law would preclude a state from collecting a sales tax from a business located outside the state.

There may be something regarding that, but as far as forcing a business to collect sales tax within a state where it has a physical presence, no. Which is what the original poster referred to. That's purely a state matter.