The Agency seeks to establish a supply contract for a range of qualitative enzyme immunoassay testing kits used in the batch release testing of vaccines and reference reagents. The products identified within this specification have been internally qualified and validated for use within established and validated test methods. To maintain method consistency, regulatory compliance, and data integrity, alternative products, equivalent products, or substitute brands cannot be accepted. The Agency intends to award a contract with an initial term and extension options(5 + 3) permitting supply for up to eight (8) years in total.