336611: Ship Building and Repairing
Shipyards that build, convert, overhaul and repair ships, submarines and barges register under this code, along with many of the fabricators and trades that work inside them.
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Open right now under NAICS 336611
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What this code covers
NAICS 336611 covers operating a shipyard: a fixed facility with drydocks and fabrication equipment that can build a ship, meaning a vessel meant for something other than personal or recreational use. The work includes building complete ships or ship sections, conversion, overhaul and repair, and building submarines, barges and similar craft.
For a small firm the opportunity is mostly repair. Navy surface ships and submarines go through scheduled maintenance periods called availabilities, and the work packages inside them cover structure, piping, tanks, habitability, electrical and machinery. The Coast Guard, Military Sealift Command, the Army watercraft fleet and NOAA run similar repair programs. New construction belongs to a small number of large yards, and small shops reach it as subcontractors.
What federal buyers typically ask for
To compete for Navy ship repair as a prime you typically need a Master Ship Repair Agreement or an Agreement for Boat Repair with Naval Sea Systems Command, and the work is specified through the NAVSEA Standard Items that every availability invokes. Welding follows the NAVSEA technical publications for procedure qualification and fabrication welding, and hardware must meet shipboard shock and vibration requirements under MIL-DTL-901 and MIL-STD-167. Submarine work adds the Level I material control and SUBSAFE traceability rules.
ISO 9001 is the usual quality floor, with Navy oversight on site. The DFARS specialty metals clause and Buy American rules follow the steel and alloy. ITAR is less common on hull and habitability work than on combat systems, and contracts with controlled unclassified information carry CMMC.
Surface ship repair in the fleet concentration ports is often set aside for small business, or competed among the agreement holders in that port. Component and hardware buys run through NAVSUP Weapon Systems Support and DLA Land and Maritime, where set-asides are common.
PSC codes that often pair with this NAICS
| PSC | Name | Why it matters |
|---|---|---|
| J019 | Maintenance, Repair, and Rebuilding of Equipment: Ships, Small Craft, Pontoons, and Floating Docks | Ship repair availabilities and drydockings. |
| J020 | Maintenance, Repair, and Rebuilding of Equipment: Ship and Marine Equipment | Repair of shipboard machinery and equipment. |
| 1905 | Combat Ships and Landing Vessels | New construction of warships. |
| 2040 | Marine Hardware and Hull Items | Hatches, doors, cleats and hull fittings. |
| 2090 | Miscellaneous Ship and Marine Equipment | Shipboard equipment that fits nowhere else. |
Before you bid
Check whether the notice requires a Master Ship Repair Agreement first. Without one you cannot prime a Navy availability, but you can still sell to the yard that wins it, and the award record tells you which yard.
Related reading
- Buyer profilesHow the regional maintenance centers and NAVSUP buy.
- Incumbent profilesWhich yards hold the current repair awards.
- For fabricatorsHow marine fabricators use LastAwarded.
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