The Defense Logistics Agency is planning a national requirements contract for Metformin HCL ER tablets in various strengths and bottle counts. The contract will be firm-fixed price with a one-year base period and four one-year option periods. It will establish a national supply source for several federal agencies, including the Department of Defense and the Department of Veterans Affairs. The solicitation is for a commercial item and will be fully competitive, allowing all sources to submit a proposal. The projected solicitation date is August 2021, but the agency reserves the right to issue it before or after that date.