Section 14-17-202 - Applicability(a) 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.(b) No alteration or amendments shall be made to existing plans, ordinances, and regulations unless in conformity with the provisions of this subchapter.Acts 1977, No. 422, § 8.0; A.S.A. 1947, § 17-1114.