Miss. Code Ann. § 49-15-107: Miss. Code Ann. § 49-15-107

There is hereby granted to the commission and the commissioners thereof all the powers provided in the said compact and all the powers necessary or incidental to the carrying out of said compact in every particular. Said powers shall be regarded as in aid of and supplemental to and in no case a limitation upon any of the powers vested in said commission by other laws of the State of Mississippi, or by the terms of said compact.