Pursuant to § 271 of the Town Law, a Planning Board of the Town is hereby created and is referred to in this chapter as the "Planning Board." The Planning Board shall consist of five members and one alternate member appointed by the Town Board, which shall also designate one of the members as Chairman thereof, and for such term as provided by the Town Law. The Planning Board shall have all the powers and perform all the duties prescribed by statute and by this chapter. The Planning Board may, pursuant to § 271 of the Town Law, establish such rules and regulations as are necessary for the transaction of its business and as are not inconsistent with the terms and provisions of this chapter. Pursuant to Town Law § 274-a, the Planning Board is hereby authorized to conduct site plan review of uses specified in this chapter.