The constitution has given powers to both the center and state governments. The nature and category of these powers vary according to their scope and impact.
The constitution has reserved some powers for the states, such powers are regarded as the reserved powers. They can only be exercised by the states. The tenth amendment of US constitution gives these powers to the states. The example of reserved powers include creating marriage laws.
Whereas the powers which can be exercised by both the states and the federal government is known as the concurrent powers. These powers include power to tax.
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