N.J. Stat. § 50:3-16.20
No person shall use any dredge for the purpose of catching or taking shellfish from Areas Nos. 2 and 3, the tooth bar of which dredge measures more than 54 inches across from center of bolt hole to center of bolt hole where the frame thereof is fastened to the tooth bar, or any dredge which measures more than 5 feet 2 inches in width from the extreme outside to outside of frame, or any dredge which measures more than 21 inches from center of tooth bar to center of cross bar, or any dredge the bag of which contains more than 17 rows of 2-inch rings, or any dredge the rings of which are less than 2 inches in diameter, inside measurement, or any dredge the bag of which measures more than 5 feet around the bag from center of tooth bar to center of cross bar, or any dredge which weighs more than 190 pounds.
N.J.S. § 50:3-16.20