A. 
As a matter of information, the Planning Board has, by special resolution of the Town Board, been given the power, simultaneously with the approval of a subdivision plat, to make any reasonable change, consistent with the public welfare, in the zoning regulations applicable to said subdivision plot, subject to the provisions of § 281 of Article 16 of the Town Law. In no case shall the zoning regulations be changed so as to increase the average density of population or cover of the land with buildings above that which is permitted in the district wherein such lands lie.
B. 
The Planning Board shall have the power, in approving site plans providing for subdivision of the initial site in an OB1 District, to vary the requirements of the chapter as to yard setbacks, minimum interior yard dimensions and total gross floor area and required parking, provided that the Planning Board shall determine and find that such changes are in the public interest and in compliance with the general purpose and intent of this chapter and ensure compatibility with uses on adjoining properties.
Any changes made by the Planning Board in zoning regulations applicable to a subdivision, under the provisions of § 281 of the Town Law, prior to the adoption of this chapter and shown on subdivision plats duly approved and filed prior to the adoption of this chapter are hereby declared to be a part of this chapter.