In consultation with U.S. Customs and Border Protection (CBP), the U.S. Consumer Product Safety Commission (Commission or CPSC) issues this final rule (the Final Rule) to revise the agency's regulation for Certificates of Compliance (certificates). The Final Rule aligns CPSC's current certificates rule with other CPSC rules on testing and certification, and implements, for importation of products and substances regulated by CPSC, electronic filing of certificates (eFiling) with CBP.