(a) The commission shall:
(1) administer this subchapter; and
(2) cooperate with municipalities and with agencies, departments, and political subdivisions of this state and the United States and its agencies in implementing this section and the environmental response law.
(b) The commission may:
(1) enter into contracts and cooperative agreements with the federal government to carry out removal and remedial action for a specific disposal facility as authorized by Section 104(c)(3) of the environmental response law or to carry out removal and remedial action with regard to a disposal facility under Section 104(d)(1) of the environmental response law;
(2) after notice and hearing, authorize the executive director to enter into contracts and cooperative agreements on behalf of the commission under Subdivision (1) under terms and conditions stated in the commission’s order; and
(3) when acting under a cooperative agreement with the federal government under Subdivision (1), undertake the enforcement and remedial actions authorized under the environmental response law as may be reasonably necessary, in lieu of or in conjunction with actions by the federal government.