A. The governing authority of the parish shall, in accordance with the comprehensive plan required by R.S. 33:4780.83, provide for the manner in which the regulations and restrictions shall be determined, established, enforced, and, from time to time, amended.
B. No regulations or restrictions shall become effective until after a public hearing held by the governing authority of the parish at which parties in interest have had an opportunity to be heard. The governing authority of the parish shall provide for notice of the hearing and notice to property owners in accordance with the provisions of R.S. 33:4780.43.