(a) It shall be unlawful to take clams from any leased shellfish grounds or contaminated area, as determined by the Department, in Delaware Bay, Indian River and Bay, Rehoboth Bay, Little and Big Assawoman Bays and the tributaries thereof, except a person authorized in writing by the holder of a lease site may take clams from said leased shellfish grounds. Such written authorization shall be at all times on the person of a least 1 member of any crew while working on leased shellfish grounds.
(b) It shall be unlawful to take or attempt to take clams under a clam tong/rake license with any device from a vessel powered by sail or mechanical means.