The Secretary shall terminate any advisory committee upon a finding that any such advisory committee—

((1)) has expended funds in excess of its estimated annual operating costs by more than 10 per centum or $500, whichever is greater, without the prior approval of the Secretary pursuant to the provisions of ;

((2)) has failed to file all reports required under the provisions of chapter 10 of title 5 or this chapter;

((3)) has failed to meet for two consecutive years;

((4)) is responsible for functions that otherwise would be or should be performed by Federal employees; or

((5)) does not serve or has ceased to serve an essential public function.