The Board of Supervisors may from time to time amend, supplement, or repeal any of the regulations and provisions of this chapter. The procedure for the preparation of a proposed zoning ordinance as set forth in Section 607 of the Pennsylvania Municipalities Planning Code, 53 P.S. § 10607, is hereby declared optional.

Before voting on the enactment of an amendment, the Board of Supervisors shall hold a public hearing thereon, pursuant to public notice. In addition, if the proposed amendment involves a zoning map change, notice of said public hearing shall be conspicuously posted by the Township at points deemed sufficient by the Township along the perimeter of the tract to notify potentially interested citizens. The affected tract or area shall be posted at least one week prior to the date of the hearing.

In the case of an amendment other than that prepared by the Planning Commission the Board of Supervisors shall submit each such amendment to the Planning Commission at least 30 days prior to the hearing on such proposed amendment to provide the Planning Commission an opportunity to submit recommendations.

If, after any public hearing held upon an amendment, the proposed amendment is changed substantially, or is revised, to include land previously not affected by it, the Board of Supervisors shall hold another public hearing, pursuant to public notice, before proceeding to vote on the amendment.

At least 30 days prior to the public hearing on the amendment by the Board of Supervisors, the Township shall submit the proposed amendment to the county planning agency for recommendations.

Within 30 days after enactment, a copy of the amendment to this chapter shall be forwarded to the county planning agency.

A landowner who desires to challenge on substantive grounds the validity of this chapter or the Zoning Map or any provision thereof, which prohibits or restricts the use or development of land in which he has an interest may submit a curative amendment to the Board of Supervisors with a written request that his challenge and proposed amendment be heard and decided as provided in Section 916.1 of the Pennsylvania Municipalities Planning Code (hereinafter "MPC"), 53 P.S. § 10916.1. The curative amendment and challenge shall be referred to the Planning Commission and the county planning agency as provided in Section 609 and notice of the hearing thereon shall be given as provided in Sections 610 and 916.1 of the MPC, 53 P.S. §§ 10609, 10610, and 10916.1.

The hearing shall be conducted in accordance with Section 908 of the MPC; and all references therein to the Zoning Hearing Board shall, for purposes of this section, be references to the Board of Supervisors. If the Township does not accept a landowner's curative amendment brought in accordance with this subsection and a court subsequently rules that the challenge has merit, the court's decision shall not result in a declaration of invalidity for this entire chapter and Zoning Map, but only for those provisions which specifically relate to the landowner's curative amendment and challenge.

The Board of Supervisors, if it determines that a validity challenge has merit, may accept a landowner's curative amendment, with or without revision, or may adopt an alternative amendment which will cure the challenged defects. The Board of Supervisors shall consider the curative amendments, plans and explanatory material submitted by the landowner and shall also consider:

If the Township determines that this chapter, or any portion hereof, is substantially invalid, it shall take the following actions:

Within 180 days from the date of the declaration and proposal, the Township shall enact a curative amendment to validate, or reaffirm the validity of, this chapter pursuant to the provisions of Section 609 of the Pennsylvania Municipalities Planning Code (hereinafter "MPC"), 53 P.S. § 10609, in order to cure the declared invalidity of this chapter.

Upon the initiation of the procedures as set forth in Subsection 1, the Board of Supervisors shall not be required to entertain or consider any landowner's curative amendment filed under Section 609.1 of the MPC, 53 P.S. § 10609.1, nor shall the Zoning Hearing Board be required to give a report requested under Sections 909.1 or 916.1 of the MPC, 53 P.S. § 10909.1 or 10916.1, subsequent to the declaration and proposal based upon the grounds identical or substantially similar to those specified by the resolution required by Subsection 1A. Upon completion of the procedures set forth in Subsections 1 and 2, no rights to a cure pursuant to the provisions of Section 609.1 and 916.1 of the MPC, 53 P.S. §§ 10609.1 and 10916.1, shall, from the date of the declaration and proposal, accrue to any landowner on the basis of the substantive invalidity of this chapter for which there has been a curative amendment pursuant to this section.

The Township having utilized the procedures set forth in this section may not again utilize said procedure for a period of 36 months following the date of enactment of a curative amendment, or reaffirmation of the validity of this chapter; Provided, However, if after the date of declaration and proposal there is a substantially new duty imposed upon the Township by virtue of a change in statute or by virtue of a Pennsylvania Appellate Court decision, the Township may utilize the provisions of this section to propose a curative amendment to this chapter to fulfill said duty or obligation.