The Rappahannock River Basin Commission, hereinafter referred to as the “Commission,” is hereby created as an independent local entity without political subdivision status, and shall be established upon passage by two-thirds of the Rappahannock River Basin’s localities of a resolution that commits them to participate in the Commission as described in this chapter. The resolution shall contain the following language: “The (jurisdiction’s governing body) does hereby agree to become a member of and participate in the Rappahannock River Basin Commission as described in Chapter 553 of the Acts of Assembly of 1998.”