Elastic clause is a clause in the U.S. Constitution that empowers the Congress to make laws that are necessary and proper for carrying out its powers. The clause is referred under USCS Const. Art. I, § 8, Cl 18. The provision 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 officially known as the Necessary and Proper clause.