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 160—LIFESAVING EQUIPMENT > SUBPART 160.174—Thermal Protective Aids (§160.174-1 to §160.174-25) > 160.174-5—Independent laboratory.