(1) The Customs Clerk licence shall be issued in any of the following grades—
(a) Clearance Certified;
(b) Boarding Certified;
(c) Entry Certified.
(2) A customs clerk licence at grade Clearance Certified shall be issued to a person who has knowledge of customs laws and procedures relating to the examination and clearance of goods out of customs charge.
(3) A customs clerk licence at grade Boarding Certified shall be issued to a person who has knowledge of the customs laws and procedures relating to the boarding of ships and aircraft and is competent in the preparation, processing and submission of declarations for shipment of cargo and ship's stores.
(4) A customs clerk licence at grade Entry Certified shall be issued to a person who is competent in the preparation, processing and submission of declarations and other documents for the importation and exportation of goods, and has a thorough knowledge of customs laws and procedures.