CEPA is a free trade agreement signed between the Mainland and the Hong Kong Special Administrative Region. The implementation of CEPA enables a wide range of Hong Kong products complying with CEPA Rules of Origin to enjoy zero tariff treatment upon importation into the Mainland if covered by a Certificate of Hong Kong Origin-CEPA. The Customs and Excise Department has been tasked with the enforcement duties of the CEPA Certification System for Trade in Goods. The main objective is to uphold the integrity of the System. The enforcement work includes inspections of factories registered with the Trade and Industry Department for certification purposes under CEPA, origin verifications and costing checks on consignments related to CEPA at factories, blitz checks at boundary exit points, and investigations into any suspected malpractices.