(a) This part applies to tests or certifications of the following when such testing or certification is used to support a certificate of compliance pursuant to section 14(a) of the Consumer Product Safety Act (CPSA) or to meet continued testing requirements pursuant to section 14(i) of the CPSA:(1) Component parts of consumer products; and(2) Finished products when conducted by a party that is not required to test or certify products pursuant to part 1110 of this chapter.(b) Component part manufacturers and suppliers may certify or test their component parts, but are not required to do so. Also, parties that are not required to test finished products, or to issue finished product certificates pursuant to part 1110 of this chapter, may do so voluntarily.(c) Subpart A establishes general requirements for component part testing and certification, and relying on component part testing or certification, or another party's finished product certification or testing, to support a certificate of compliance issued pursuant to section 14(a) of the Consumer Product Safety Act (CPSA) or to meet continued testing requirements pursuant to section 14(i) of the CPSA. Subpart B sets forth additional requirements for component part testing for specific consumer products, component parts, and chemicals. Subpart B is applicable only to those products or requirements expressly included in subpart B. Subpart C describes the conditions and requirements for composite testing.76 FR 69580, Nov. 8, 2011, as amended at 80 FR 61732, Oct. 14, 2015