The Mayor and Council may, from time to time, as provided by and according to the statutes of New Jersey, on its own motions or on petition, after a public hearing, amend, supplement or change the regulations and districts herein established and adopt rules and regulations for the purpose of interpreting and carrying this chapter into effect. Every such proposed amendment, supplement or change shall be referred by the Mayor and Council to the Land Use Board for approval, disapproval or suggestion. The Land Use Board shall have a reasonable time of not less than 30 days for consideration and report and, in the case of an unfavorable report by the Land Use Board, such amendment shall not become effective except by a favorable vote of 2/3 of the governing body.