Answer:
The 10th Amendment states, "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.". This means that any powers not granted to the federal government via the Constitution and are not prohibited are reserved for individual states, with states having the ability to regulate commerce within their borders and legislate laws. This forms the basis of the federal system of governance, where power is divided between a central national government and smaller local or regional governing bodies, such as states.