Sample testing procedures centralize electronic forwarding and retesting to streamline customs sample analysis and reporting. Representative samples from consignments are drawn under orders of the proper officer for testing or other purposes; re testing requests within specified times may be granted by senior customs commissioners as a facilitative measure. The CRCL module automates forwarding of electronic test memos and receipt of test reports to and from CRCL and other Revenue Laboratories, and field formations may refer samples to designated external laboratories when CRCL lacks capability.