The CDC is awarding one or more Indefinite Delivery/Indefinite Quantity contracts for standard commercial adult vaccines, using Section 317 funds to secure prices below commercial market rates. These contracts support adult immunization programs by providing vaccines to state and local health departments, large city programs, and U.S. territories. The program aims to immunize adults at greatest risk of undervaccination and disease through partnerships with public and private healthcare providers. Successful awardees will supply vaccines to the National Center for Immunization and Respiratory Disease’s immunization awardees. Additionally, awardees may purchase extra vaccine quantities for adults under the contracts using state and local funds.