Aids to Navigation
541Aids to navigation authorized542Unauthorized aids to maritime navigation; penalty543Interference with aids to navigation; penalty544Aids to maritime navigation; penalty545Marking of obstructions546Deposit of damage payments547Rewards for apprehension of persons interfering with aids to navigation548Prohibition against officers and employees being interested in contracts for materials549Lighthouse and other sites; necessity and sufficiency of cession by State of jurisdiction550Marking pierheads in certain lakes551Marking anchorage grounds by Commandant of the Coast Guard552Discontinuance of aid to navigation