Oceaneering International Inc., Houston, Texas, is awarded a not-to-exceed $11,731,666, cost-plus-fixed-fee, undefinitized contract action to provide for the support of Transfer Under Pressure capability and modernization, including Surveillance Towed Array Sensor System support. Work will be performed in Hanover, Maryland (70%); San Diego, California (15%); and Norfolk, Virginia (15%), and is expected to be completed by December 2024. Fiscal 2024 operations and maintenance (Navy) funding in the amount of $587,875 (62%); fiscal 2024 other procurement (Navy) funding in the amount of $200,000 (21%); fiscal 2022 other procurement (Navy) funding in the amount of $127,124 (13%); and fiscal 2024 research development test and evaluation (Navy) funding in the amount of $40,000 (4%), will be obligated at time of award, of which funding in the amount of $714,999 will expire at the end of the current fiscal year. This contract was not competitively procured in accordance with 10 U.S. Code 3204(a)(1) (only one responsible source and no other supplies and services will satisfy agency requirements). Naval Sea Systems Command, Washington, D.C., is the contracting activity (N00024-24-C-4301).