As used in this subchapter:
(1) “Buoy” means any float or marker that is attached to a mooring anchor and either is suitable for attachment to a boat through the use of a pennant or other device or facilitates the attachment of the boat to the mooring anchor.
(2) “Dock” means an unenclosed structure secured to land, land under waters, or a mooring or a floating structure that is used for mooring boats or for recreational activities, such as a swimming, fishing, or sunbathing platform. A dock includes a structure that is partially enclosed or has two or more levels.
(3) “Encapsulated” means a protective covering or physical barrier between the polystyrene device and the water.
(4) “Expanded polystyrene foam” means a thermoplastic petrochemical material utilizing the styrene monomer that is processed according to multiple techniques, including fusion of polymer spheres, injection molding, form molding, and extrusion-blow molding.
(5) “Floating structure” means a structure constructed on or in a water of the State that is supported by flotation and is secured in place by a piling or mooring anchor, including boathouses, fueling structures, floating homes, marinas, walkways, or boarding platforms.
(6) “Mooring anchor” means any anchor or weight that is designed to:
(A) rest on the land under water or be buried in the land under water;
(B) be attached to a buoy or floating structure by a chain, rope, or other mechanism; and
(C) be left in position permanently or on a seasonal basis.