The University of Hawaii, Honolulu, Hawaii, has been awarded a $9,718,944 modification (P00005) to cost-plus-fixed-fee contract HR001122C0134 to exercise Phase 2, Option 1, Contract Line Item Number 0002 of the Reefense Program. The modification brings the total cumulative face value of the contract to $17,453,592 from $7,735,037. Work will be performed in Honolulu, Hawaii (51%); Waimanalo, Hawaii (33%); San Diego, California (13%); and Boca Raton, Florida (3%), with an estimated completion date of June 2025. Fiscal 2023 research and development funds in the amount of $1,549,720 are being obligated at the time of award. The Defense Advanced Research Projects Agency, Arlington, Virginia, is the contracting activity.