After this chapter is adopted by the Levy Court, suggestions of additions, changes or modifications of the existing chapter shall be submitted to the Kent County Levy Court by the Department of Public Works. The Kent County Levy Court shall forward the proposed additions, changes or modifications to the Kent County Regional Sewer Advisory Board for review, evaluation, and recommendation for approval as proposed or make changes agreed upon by the SAB. A public hearing before the Levy Court shall be held for recommended changes, and the final decision shall be made by the Levy Court. The Sanitary Code shall then be modified by ordinance.