# Modular Attack Surface Craft (MASC)- Solicitation Canonical: https://abierto.us/opportunities/n0002425r6314 - Solicitation number: N00024-25-R-6314 - Notice type: Solicitation (first published as sources sought) - Status: Closed. Deadline was August 11, 2025 at 6:00 PM EDT - Department: Department of the Navy - Agency: Department of the Navy - Contracting office: NAVSEA HQ (N00024) - NAICS: 336611 Ship Building and Repairing - Product or service code: 1905 Combat Ships and Landing Vessels - Place of performance: Washington Navy Yard, District of Columbia - First posted: October 25, 2024 - Last posted: July 31, 2025 - SAM.gov: https://sam.gov/workspace/contract/opp/8b9b32c898a64ddc9d7dcd3d208cfb0e/view ## Description The Navy is pleased to announce the Modular Attack Surface Craft (MASC) program, which seeks Unmanned Surface Vessels (USV) to address several key operational needs. MASC seeks to leverage cutting-edge technologies and modular design principles to create adaptable and resilient solutions that can effectively counter evolving threats. We invite interested parties with expertise in innovative solutions to complex problems, vessel construction, autonomy, perception systems and general maritime experience to participate in this exciting opportunity. To accelerate the design, development and demonstration of MASC capabilities, the Navy will be utilizing the Other Transaction Authority pathway as outlined in Title 10 U.S.C. § 4022. It is intended that this solicitation will result in the award(s) of prototype projects, which may include not only commercially-available technologies fueled by commercial or strategic investment, but also concept demonstrations, pilots, and agile development activities that can incrementally improve commercial technologies, existing Government-owned capabilities, or concepts for defense application. The initial effort will focus on the relevance, technical merit, feasibility, and affordability of the proposed vessel solutions. The Solicitation Guidance provides information on how to respond to this solicitation and outlines the phased approach. Exhibit A, the Area of Interest (AOI) outlines the technical desired attributes and technology capabilities the Navy is seeking from industry for the MASC program. The MASC Solicitation posting has been updated as of 1245pm on 28 July - the "20250728 Area of Interest_MASC EX A" supersedes the previous as the document had errant markings. The MASC Solicitation posting has been updated as of 215pm on 31July - the "20250731 Solicitation Guidance" supersedes the previous as the document. All proposals shall be submitted electronically via email and must be received no later than 11 August 2025, at 6:00 p.m. Local Time (Washington, District of Columbia) to the following addresses: **TO:** Ms. Cassandra Brese – cassandra.j.brese.civ@us.navy.mil and Mr. Kevin Hubbard- kevin.a.hubbard.civ@us.navy.mil SUBJECT LINE: MASC N00024-25-R-6314 Response [COMPANY NAME] Companies are encouraged to submit White Papers prior to the latest closing date. Inclusion of a delivery receipt with an email submission will be the only indication of successful receipt of White Paper. File size is limited to 10MB per email. Companies are responsible for ensuring their email size does not exceed the 10MB limitation. File sizes larger than 10MB and .zip file extensions may be stripped by the Navy email system. Links to online share drives such as google drive, dropbox, etc. will not be accepted. One email is acceptable as long as it does not exceed 10MB. If it exceeds 10MB, companies may separate their submission among multiple emails and should number them (e.g., 1 of 3, 2 of 3, 3 of 3). **NOTE:** HARD COPIES OF MAILED OR HAND DELIVERED WHITE PAPERS WILL NOT BE ACCEPTED. Submissions sent through other channels or after the Phase 1 period has ended will not be reviewed nor evaluated. ## Publications - October 25, 2024: Sources sought, due November 15, 2024 at 12:00 PM EST. Notice 34ec5ee53f5e4c92b92fcaec4a2f54cd. https://sam.gov/workspace/contract/opp/34ec5ee53f5e4c92b92fcaec4a2f54cd/view - October 25, 2024: Sources sought, due November 15, 2024 at 12:00 PM EST. Notice 5c92a4917e5d41d3a51a20c742cc8778. https://sam.gov/workspace/contract/opp/5c92a4917e5d41d3a51a20c742cc8778/view - October 25, 2024: Sources sought, due November 15, 2024 at 12:00 PM EST. Notice 998a6188dde44b309d76b488e9a28314. https://sam.gov/workspace/contract/opp/998a6188dde44b309d76b488e9a28314/view - November 13, 2024: Sources sought, due November 20, 2024 at 12:00 PM EST. Notice 9e2bc22e2aba46f98c5c0bd846136de4. https://sam.gov/workspace/contract/opp/9e2bc22e2aba46f98c5c0bd846136de4/view - May 16, 2025: Special notice, due June 6, 2025 at 5:00 PM EDT. Notice 55219aab20d0437390ec7da6a58c9996. https://sam.gov/workspace/contract/opp/55219aab20d0437390ec7da6a58c9996/view - June 4, 2025: Special notice, due June 6, 2025 at 5:00 PM EDT. Notice 1befcad1ce8c428dac36b5cddf8a31f5. https://sam.gov/workspace/contract/opp/1befcad1ce8c428dac36b5cddf8a31f5/view - July 28, 2025: Solicitation, due August 11, 2025 at 6:00 PM EDT. Notice 0f71ba21fdf6421da8306caf82b38170. https://sam.gov/workspace/contract/opp/0f71ba21fdf6421da8306caf82b38170/view - July 28, 2025: Solicitation, due August 11, 2025 at 6:00 PM EDT. Notice 50f14282db7c48a0802563fac9d2921d. https://sam.gov/workspace/contract/opp/50f14282db7c48a0802563fac9d2921d/view - July 31, 2025: Solicitation, due August 11, 2025 at 6:00 PM EDT. Notice 8b9b32c898a64ddc9d7dcd3d208cfb0e. https://sam.gov/workspace/contract/opp/8b9b32c898a64ddc9d7dcd3d208cfb0e/view ## Points of contact - Cassandra Brese, cassandra.j.brese.civ@us.navy.mil - Kevin Hubbard, kevin.a.hubbard.civ@us.navy.mil --- Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/n0002425r6314.