The Town Board may, on its own motion, or on petition from the public or on recommendation of the Planning Board, amend, supplement, change or repeal the regulations and provisions of this chapter after legal notice and public hearing as specified by the Town Law or the Municipal Home Rule Law.

The Town Board shall fix the time and place for a public hearing on the proposed change or amendment and cause notice to be given by publishing and posting a notice of public hearing as required by law.

In the event a valid protest petition is submitted per Town Law § 265, no such proposed and protested amendment to this chapter shall be adopted except by a favorable vote of 3/4 of the members of the Town Board.

Nothing in this chapter, or in any amendments hereto, shall be construed as changing the plans or uses of present buildings, or the construction, use or occupancy of any building for which a permit has heretofore been issued.