CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER Q—EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL (parts 159 to 165) > PART 164—MATERIALS > SUBPART 164.015—Plastic Foam, Unicellular, Buoyant, Sheet and Molded Shape (§164.015-1 to §164.015-5) > 164.015-2—Types.

164.015-2—Types.

(a) Unicellular expanded polyvinyl chloride-acetate copolymer or synthetic rubber modified polyvinyl chloride, polymer or copolymer plastic foam shall be of three types as follows:
Type A—for life preservers, buoyant vests or buoyant cushions.
Type B—for buoyant vests or buoyant cushions.
Type C—for ring life buoys.
(b) [Reserved]