The regulations, restrictions and boundaries established in this chapter may, from time to time, be amended, supplemented, changed, modified or repealed by the governing body, provided:

(1)

The planning commission shall hold at least one public hearing on such proposed amendment after notice as required by law, and may make appropriate changes in the proposed amendment to the governing body together with its recommendations and appropriate explanatory materials. Such public hearing may be held jointly with the governing body at its public hearing.

(2)

Before approving and adopting any amendment, the governing body shall hold at least one public hearing thereon, pursuant to public notice as required by law after which the governing body may make appropriate changes or corrections in the proposed amendments; provided, however, that no additional land may be zoned to a different classification than was contained in the public notice without an additional public hearing after notice required by law. An affirmative vote of at least a majority of the members of the governing body shall be required to amend the zoning ordinance.

The repeal, amendment or recodification of any part of this chapter shall not affect any act, or offense done or committed, or any penalty incurred or any right established, accrued or accruing on or before the effective date of such repeal, amendment or recodification, nor enlarge any such right or privilege, except as specifically provided by such repeal, amendment or recodification. Neither shall the repeal amendment or recodification of any part of this chapter affect any proceeding, prosecution, suit or action which may be pending, said prior laws being continued in full force and affect for those purposes.