Section 14-56-424 - Existing plans, etc(a) All plans, ordinances, regulations, or amendments thereto shall comply with the provisions of this subchapter.(b) Nothing in this subchapter shall invalidate any plans, ordinances, or regulations duly adopted in accordance with the statutes in effect at the time of adoption.(c) No alteration or amendments may be made to plans, ordinances, and regulations unless in conformity with the provisions of this subchapter.Acts 1957, No. 186, § 6; A.S.A. 1947, § 19-2830.