Coefficient clause is a clause in the U.S. Constitution that empowers Congress to make laws. This clause referred under USCS Const. Art. I, § 8, Cl 18 reads:
“To make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers, and all other Powers vested by this Constitution in the Government of the United States, or in any Department or Officer thereof”.
This clause is also known as the Necessary and Proper Clause.