SWRMC is conducting market research for a potential follow-on multiple-award IDIQ firm-fixed-price contract for submarine repair, with an anticipated RFP release on or around December 4, 2026, subject to change. The work covers depot-level maintenance and repair availabilities for submarines homeported or visiting San Diego, CA, under NAICS 336611. Scope is limited to non-nuclear and non-SUBSAFE work forward of frame 50 for 688-class submarines and forward of containment areas for Virginia/Trident submarines, with no work aft of frame 50 authorized. The contractor would furnish all labor, equipment, materials, and facilities, while government utilities may be available at contractor expense. SWRMC is especially interested in small business capability and interest; respondents should provide company details, CAGE/UEI, capabilities, relevant past performance, security-clearance information, and answers to specific questions in a letter of interest limited to five pages.