 The United States also lacks an agency in charge of diamond import confirmations, which allows traders to bypass the requirement of reporting the receipt of the diamond shipment within 15 days of the arrival.The U.S. Customs and Border Protection (CBP) is the agency in charge of overseeing incoming diamond shipments and conducting examinations of shipments.There is also little oversight of the U.S. Kimberley Process Authority (USKPA), who are responsible for issuing Kimberley Process certificates, so no one supervises the company making sure that USKPA adheres to KPCS standards.