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, by the Board of Supervisors or by a petition to the Board of Supervisors. Such amendment, supplement, change or repeal shall be submitted to the Township and the County Planning Commissions for their recommendations.