(a) Requirements for Approval.—Except as provided in section 15304(c)(3), decisions by the Commission shall require the affirmative vote of the Federal Cochairperson and a majority of the State members (exclusive of members representing States delinquent under section 15304(c)(3)(C)).

(b) Consultation.—In matters coming before the Commission, the Federal Cochairperson shall, to the extent practicable, consult with the Federal departments and agencies having an interest in the subject matter.

(c) Quorums.—A Commission shall determine what constitutes a quorum for Commission meetings; except that—

(1) any quorum shall include the Federal Cochairperson or the alternate Federal Cochairperson; and

(2) a State alternate member shall not be counted toward the establishment of a quorum.

(d) Projects and Grant Proposals.—The approval of project and grant proposals shall be a responsibility of each Commission and shall be carried out in accordance with section 15503.