The Secretary and the Commission shall exercise their responsibilities pursuant to sections
544 to
544p of this title in consultation with Federal, State, and local governments having jurisdiction within the scenic area or expertise pertaining to its administration and with Indian tribes. The Secretary and the Commission shall conduct public hearings and solicit public comment prior to final adoption of the management plan and the Commission shall conduct public hearings and solicit public comment prior to final adoption of land use ordinances. The Commission and the appropriate county shall promptly notify the Secretary, the States, local governments and Indian tribes of all proposed major development actions and residential development in the scenic area.