The Board of Supervisors may, from time to time, after public notice and hearing as hereinafter prescribed, amend, supplement, change, or repeal this chapter, including the Zoning Map. Any amendment, supplement, change or repeal may be initiated by the Township Planning Commission, the Board of Supervisors or by a petition to the Board of Supervisors. Unless initiated by the Township Planning Commission, such amendment, supplement, change or repeal shall be submitted to the Township Planning Commission for its recommendations; and if the same, after public hearing, shall be specifically found by the Board of Supervisors to be in accordance with the spirit and intent of the formally adopted portions of the most-recent version of the Lancaster Township Comprehensive Plan, as amended, final action shall be taken by the Board of Supervisors on such amendment.