No development application in which a plat is required shall be accepted unless such plat conforms to the following requirements as to form, content and accompanying information and complies with the provisions of N.J.S.A. 46-23.9.9 et seq. (Map Filing Law), as amended. All plats shall be drawn by a land surveyor as required by law, licensed to practice in the State of New Jersey, and shall bear the signature, seal, license number and address of the land surveyor, except that sketch plats of minor subdivisions and minor site plans are exempt from this requirement. All drawings of improvements shall be signed and sealed by a licensed professional engineer of the State of New Jersey.