46 C.F.R. § 164.019-4 Component requirements.
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(a) PFDs may be constructed only with Coast Guard-accepted PFD components meeting the requirements of this subchapter. (b) PFD components may be used in the construction of PFDs only in accordance with their Use Codes.
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PART 164—MATERIALS
Subpart 164.019—Personal Flotation Device Components
§ 164.019-4 Component requirements.

