Laboratory suppliers are required to be registered in the GSA System for Award Management (SAM) database for the duration of their valid purchase order and/or contract. Suppliers who are not registered or have not maintained an active registration prior to award of a Laboratory valid purchase order and/or contract will have 30 days to do so. Once completed, the registration takes 48 to 72 hours to process and will be valid for one year. SAM Registration is free – all prospective suppliers are urged to register. A DUNS number is required to complete the registration. Follow these instructions to register. If further assistance is required, visit the Federal Service Desk or call 866.606.8220.