The Township Board may from time to time, on recommendation from the Planning Commission, amend, modify, supplement, or revise the district boundaries or the provisions and regulations herein established, whenever the public necessity and convenience and the general welfare require such amendment. Amendments may be initiated by resolution of the Township Board, the Planning Commission, or by petition of one or more owners of property to be affected by the proposed amendment. Except for the Township Board, or the Planning Commission, the petitioner or petitioners requesting an amendment shall at the time of application pay the fees established by the Township Board as set forth in § 40-3.06, no part of which shall be refundable to the petitioner. All proposed amendments shall be referred to the Planning Commission for review and recommendation.