Cut from the Ma Regs
Lead sinkers, lead weights, and lead jigs weighing less than an ounce. Any sinker or weight made from lead that weighs less than 1 ounce, and any lead jig (meaning any lead-weighted hook) that weighs less than 1 ounce, is prohibited for use in all inland waters of the Commonwealth. The term lead sinker shall not include any other sinkers, weights, fishing lures or fishing tackle including, but not limited to, artificial lures, hooks, weighted flies, and lead-core or other weighted fishing lines.