Definition of State law:
A law of the State; (also) a law of a state, as contrasted with a federal law; (as a mass noun) such laws as a body.
Passed by state legislature and signed into law by state governor with jurisdiction in one of the 50 U.S. states. Federal laws sometimes conflict with state laws and will either supersede them or law will be challenged in a federal court.
Meaning of State law & State law Definition