1. Marine Transportation and Logistics
   1. 48 -- TRANSPORTATION AND WAREHOUSING
      1. 484230 -- BOAT HAULING, TRUCK, LONG-DISTANCE
      2. 484230 – SPECIALIZED FREIGHT TRUCKING, LONG DISTANCE
      3. 488320 – MARINE CARGO HANDLING SERVICES
      4. 488330 - NAVIGATIONAL SERVICES TO SHIPPING (INCLUDES CARGO SALVAGING, MARINE; DOCKING AND UNDOCKING MARINE VESSEL SERVICES; MARINE SALVAGING SERVICES; MARINE VESSEL TRAFFIC REPORTING SERVICES)
      5. 488390 - OTHER SUPPORT ACTIVITIES FOR WATER TRANSPORTATION (INCLUDES CARGO SURVEYORS, CHECKERS, MARINE)
      6. 488510 - FREIGHT TRANSPORTATION ARRANGEMENT (INCLUDES MARINE SHIPPING AGENCY)
      7. 488999 - ALL OTHER SUPPORT ACTIVITIES FOR TRANSPORTATION
   2. 53 -- REAL ESTATE AND RENTAL AND LEASING
      1. 532292 -- BOAT RENTAL, PLEASURE
   3. 54 -- PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES
      1. 541614 – PROCESS, PHYSICAL DISTRIBUTION AND LOGISTICS SERVICES
2. SHIPBUILDING AND REPAIR (Includes Boatbuilding)
   1. 23 -- CONSTRUCTION
      1. 238320 -- SHIP PAINTING CONTRACTORS
      2. 238350 -- SHIP JOINERY CONTRACTORS
   2. 325 -- CHEMICAL MANUFACTURING
      1. 325510 -- MARINE PAINTS MANUFACTURING
   3. 332 -- FABRICATED METAL PRODUCT MANUFACTURING
      1. 332312 – SHIP SECTIONS, PREFABRICATED METAL, MANUFACTURING [INCLUDES BOAT SECTIONS]
   4. 333 -- MACHINERY MANUFACTURING
      1. 333612 -- SPEED CHANGER, INDUSTRIAL HIGH-SPEED DRIVE, AND GEAR MANUFACTURING
      2. 333618 -- MARINE ENGINES MANUFACTURING
   5. 336 -- TRANSPORTATION EQUIPMENT MANUFACTURING
      1. 336611 -- SHIP BUILDING AND REPAIRING (INCLUDES ALL VESSEL TYPES)
      2. 336612 – BOAT BUILDING [INCLUDES ALL TYPES]
   6. 54 -- PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES
      1. 541330 – BOAT ENGINEERING DESIGN SERVICES (INCLUDES MARINE ENGINEERING SERVICES)
3. MARINE VENDOR BASE
   1. 23 -- CONSTRUCTION
      1. 238210 -- ELECTRICAL CONTRACTORS AND OTHER WIRING INSTALLATION CONTRACTORS
      2. 238220 -- PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS / COMMERCIAL REFRIGERATION
   2. 31 -- MANUFACTURING
      1. 314912 -- SAILS MADE FROM PURCHASED FABRICS
   3. 325 -- CHEMICAL MANUFACTURING
      1. 325191 -- NAVAL STORES, GUM OR WOOD, MANUFACTURING
   4. 331 -- PRIMARY METAL MANUFACTURING
      1. 331111 – IRON AND STEEL MILLS
      2. 331210 – IRON AND STEEL PIPE AND TUBE MANUFACTURING FROM PURCHASED STEEL
      3. 331221-- ROLLED STEEL SHAPE MANUFACTURING
      4. 331311 – ALUMINA REFINING
      5. 331314 – SECONDARY SMELTING AND ALLOYING OF ALUMINUM
      6. 331315 – ALUMINUM SHEET, PLATE, AND FOIL MANUFACTURING
      7. 331319 -- SHIPBOARD CABLE MADE IN ALUMINUM WIRE DRAWING PLANTS
      8. 331422 -- SHIPBOARD CABLE MADE FROM PURCHASED COPPER IN WIRE DRAWING PLANTS
      9. 331512 – STEEL INVESTMENT FOUNDRIES
      10. 331521 – ALUMINUM DIE-CASTING FOUNDARIES
      11. 331525 -- SHIP AND BOAT PROPELLERS, CAST BRASS, BRONZE AND COPPER (EXCEPT DIE-CASTING), UNFINISHED, MANUFACTURING
   5. 332 -- FABRICATED METAL PRODUCT MANUFACTURING
      1. 332313 – PLATE WORK MANUFACTURING
      2. 332322 – SHEET METAL WORK MANUFACTURING
      3. 332410 -- MARINE POWER BOILERS MANUFACTURING
      4. 332420 – METAL TANK (HEAVY GAUGE) MANUFACTURING
      5. 332510 -- MARINE HARDWEAR, METAL, MANUFACTURING
      6. 332710 – MACHINE SHOPS
      7. 332995 -- NAVAL ARTILLERY MANUFACTURING
      8. 332999 – ALL OTHER MISCELLANEOUS FABRICATED METAL PRODUCT MANUFACTURING (INCLUDES MARINE HORNS, COMPRESSED AIR OR STEAM, METAL, MANUFACTURING)
   6. 333 -- MACHINERY MANUFACTURING
      1. 333298 – ALL OTHER INDUSTRIAL MACHINE MANUFACTURING
      2. 333923 -- BOAT LIFTS MANUFACTURING / SHIP CRANES AND DERRICKS MANUFACTURING
      3. 333992 – WELDING AND SOLDERING EQUIPMENT MANUFACTURING
   7. 334 -- COMPUTER AND ELECTRONIC PRODUCT MANUFACTURING
      1. 334220 – MARINE RADIO COMMUNICATIONS EQUIPMENT
      2. 334290 -- SIRENS (E.G., AIR RAID, INDUSTRIAL, MARINE, VEHICLE) MANUFACTURING
      3. 334511 – NAUTICAL SYSTEMS AND INSTRUMENTS MANUFACTURING
      4. 334513 -- BOILER CONTROLS, INDUSTRIAL, POWER, AND MARINE-TYPE, MANUFACTURING
   8. 335 -- ELECTRICAL EQUIPMENT, APPLIANCE, AND COMPONENT MANUFACTURING
      1. 335314 -- MARINE AND NAVY AUXILIARY CONTROLS, MANUFACTURING
      2. 335911 -- MARINE STORAGE BATTERIES MANUFACTURING
   9. 336 -- TRANSPORTATION EQUIPMENT MANUFACTURING
      1. 336214 -- BOAT TRANSPORTER TRAILERS, SINGLE-UNIT, MANUFACTURING
      2. 336321 -- BOAT AND SHIP LIGHTING FIXTURES MANUFACTURING
      3. 336999 – MANUFACTURING
   10. 337 -- FURNITURE AND RELATED PRODUCT MANUFACTURING
       1. 337127 -- SHIP FURNITURE MANUFACTURING
   11. 339 -- MISCELLANEOUS MANUFACTURING
       1. 339920 -- SAILBOARDS MANUFACTURING
   12. 42 -- WHOLESALE TRADE
       1. 423510 – METAL SERVICE CENTERS AND OTHER METAL MERCHANT WHOLESALERS
       2. 423610 – ELECTRICAL APPARATUS AND EQUIPMENT, WIRING SUPPLIES, RELATED EQUIPMENT MERCHANT WHOLESALERS
       3. 423620 – ELECTRICAL AND ELECTRONIC APPLIANCE, TELEVISION, AND RADIO SET MERCHANT WHOLESALERS
       4. 423690 – COMMUNICATIONS EQUIPMENT MERCHANT WHOLESALER
       5. 423710 – HARDWARE MERCHANT WHOLESALERS
       6. 423720 – PLUMBING AND HEATING EQUIPMENT AND SUPPLIES (HYDRONICS) MERCHANT WHOLESALERS
       7. 423740 – REFRIGERATION EQUIPMENT AND SUPPLIES MERCHANT WHOLESALERS
       8. 423810 - CONSTRUCTION AND MINING (EXCEPT OIL WELL) MACHINERY AND EQUIPMENT MERCHANT WHOLESALERS
       9. 423830 – INDUSTRIAL MACHINERY AND EQUIPMENT MERCHANT WHOLESALER
       10. 423840 – INDUSTRIAL SUPPLIES MERCHANT WHOLESALERS
       11. 423860 -- MARINE SUPPLIES (EXCEPT PLEASURE) MERCHANT WHOLESALERS [INCLUDES SHIPS, BOATS, ENGINES, AND OTHER TRANSPORTATION EQUIPMENT]
       12. 423910 -- MARINE SUPPLIES, PLEASURE, MERCHANT WHOLESALERS [INCLUDES SHIPS, BOATS, ENGINES, AND OTHER TRANSPORTATION EQUIPMENT]
       13. 424710 – PETROLEUM BULK STATIONS AND TERMINALS
       14. 424720 – PETROLEUM AND PETROLEUM PRODUCTS MERCHANT WHOLESALERS
       15. 424990 -- SHIP CHANDLER MERCHANT WHOLESALERS
   13. 44 -- RETAIL TRADE
       1. 441221 – MOTORCYCLE, TV, AND PERSONAL WATERCRAFT DEALERS
       2. 441222 – BOAT DEALERS (INCLUDES MARINE SUPPLY DEALERS)
       3. 444130 – HARDWARE STORES
       4. 444190 -- OTHER BUILDING MATERIAL DEALERS
       5. 444210 – OUTDOOR POWER EQUIPMENT SALES
       6. 447190 – OTHER GASOLINE STATIONS (INCLUDES MARINE SERVICE STATIONS)
   14. 451 SPORTING GOODS, HOBBY, BOOK, AND MUSIC STORES
       1. 451110 - SPORTING GOODS STORES
   15. 454 -- NONSTORE RETAILERS
       1. 454319 – OTHER FUEL DEALERS
   16. 53 -- REAL ESTATE AND RENTAL AND LEASING
       1. 532411 -- COMMERCIAL AIR, RAIL, AND WATER TRANSPORTATION EQUIPMENT RENTAL AND LEASING
       2. 532412 -- CONSTRUCTION, MINING, AND FORESTRY MACHINERY AND EQUIPMENT RENTAL AND LEASING
       3. 532490 -- OTHER COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT RENTAL AND LEASING
   17. 54 -- PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES
       1. 541420 – INDUSTRIAL DESIGN SERVICES
   18. 81 -- OTHER SERVICES (EXCEPT PUBLIC ADMINISTRATION)
       1. 811213 – COMMUNICATION EQUIPMENT REPAIR AND MAINTENANCE
       2. 811219 – OTHER ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE
       3. 811310 - COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT (EXCEPT AUTOMOTIVE AND ELECTRONIC) REPAIR AND MAINTENANCE
4. MARINE SAFETY / ENVIRONMENTAL
   1. 54 -- PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES
      1. 541620 -- ENVIRONMENTAL CONSULTING SERVICES
   2. 56 -- ADMINISTRATIVE AND SUPPORT AND WASTE MANAGEMENT AND REMEDIATION SERVICES
      1. 562910 – ENVIRONMENTAL REMEDIATION SERVICES
5. MARINE CIVIL CONSTRUCTION
   1. 23 -- CONSTRUCTION
      1. 236210 -- INDUSTRIAL BUILDING CONSTRUCTION
      2. 236220 -- COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION
      3. 237130 -- CABLE LAYING / ALTERNATIVE ENERGY (E.G., GEOTHERMAL, MARINE, TELEVISION, TELPHONE, OCEAN WAVE, SOLAR, WIND) STRUCTURE CONSTRUCTION
      4. 237990 -- MARINE CONSTRUCTION [ ALL TYPES]
   2. 321 -- WOOD PRODUCT MANUFACTURING
      1. 321114 -- PILINGS, FOUNDATION, AND MARINE CONSTRUCTION, TREATING
6. MARINE PROFESSIONAL SERVICES
   1. 42 -- WHOLESALE TRADE
      1. 423930 -- SHIP DISMANTLING (EXCEPT AT FLOATING DRYDOCKS AND SHIPYARDS) MERCHANT WHOLESALERS
   2. 51 -- INFORMATION
      1. 517210 -- SHIP-TO-SHORE BROADCASTING COMMUNICATION CARRIERS, EXCEPT SATELLITE
   3. 52 -- FINANCE AND INSURANCE
      1. 522110 – COMMERCIAL BANKING
      2. 522120 – SAVINGS INSTITUTIONS
      3. 522130 – CREDIT UNIONS
      4. 522190 – OTHER DEPOSITORY CREDIT INTERMEDIATION
      5. 522220 – SALES FINANCING
      6. 522291 – CONSUMER LENDING
      7. 523110 – INVESTMENT BANKING AND SECURITIES DEALING
      8. 524126 – DIRECT PROPERTY AND CASUALTY INSURANCE CARRIERS (INCLUDES MARINE INSURANGE CARRIERS, DIRECT)
      9. 524127 – DIRECT TITLE INSURANCE CARRIERS
      10. 524130 -- MARINE REINSURANCE CARRIERS
      11. 524210 – INSURANCE AGENCIES AND BROKERAGES
   4. 54 -- PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES
      1. 541110 – OFFICES OF LAWYERS
      2. 541199 -- ALL OTHER LEGAL SERVICES
      3. 541330 -- ENGINEERING SERVICES
      4. 541340 -- DRAFTING SERVICES
      5. 541360 -- GEOPHYSICAL SURVEYING AND MAPPING SERVICES
      6. 541370 -- SURVEYING AND MAPPING (EXCEPT GEOPHYSICAL) SERVICES
      7. 541712 -- OCEANOGRAPHIC RESEARCH AND DEVELOPMENT LABORATORIES OR SERVICES
      8. 541990 -- ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (INCLUDES MARINE SURVEYOR SERVICES)
   5. 56 -- ADMINISTRATIVE AND SUPPORT AND WASTE MANAGEMENT AND REMEDIATION SERVICES
      1. 561990 -- ALL OTHER SUPPORT SERVICES
7. PORTS, HARBORS, AND INFRASTRUCTURE
   1. 22 -- UTILITIES
      1. 221111 -- HYDROELECTRIC POWER GENERATION
      2. 221119 -- OTHER ELECTRIC / POWER GENERATION
      3. 221122 -- ELECTRIC POWER DISTRIBUTION
   2. 23 -- CONSTRUCTION
      1. 238990 -- BOAT LIFT INSTALLATION
   3. 48 -- TRANSPORTATION AND WAREHOUSING
      1. 488310 -- PORT AND HARBOR OPERATIONS
   4. 493 -- WAREHOUSING AND STORAGE
      1. 493110 -- GENERAL WAREHOUSING AND STORAGE
      2. 493120 – REFRIGERATED WAREHOUSING AND STORAGE
      3. 493190 -- OTHER WAREHOUSING AND STORAGE
   5. 53 -- REAL ESTATE AND RENTAL AND LEASING
      1. 531120 -- DOCK AND ASSOCIATED BUILDING RENTAL OR LEASING
8. ALLIED INDUSTRIES
   1. 11 -- AGRICULTURE, FORESTRY, FISHING AND HUNTING
      1. 112512 -- SHELLFISH FARMING
      2. 112519 -- OTHER AQUACULTURE
      3. 114111 -- FINFISH FISHING
      4. 114112 -- SHELLFISH FISHING
      5. 114119 -- OTHER MARINE FISHING
   2. 21 MINING, QUARRYING, AND OIL AND GAS EXTRACTION
      1. 211111 NATURAL GAS, OFFSHORE PRODUCTION / OFFSHORE CRUDE PETROLEUM PRODUCTION
      2. 213111 – DRILLING OIL AND GAS WELLS
      3. 213112 – SUPPORT ACTIVITIES FOR OIL AND GAS OPERATIONS
      4. 213113 – SUPPORT ACTIVITIES FOR COAL MINING
      5. 213114 – SUPPORT ACTIVITIES FOR METAL MINING
      6. 213115 – SUPPORT ACTIVITIES FOR NONMETALLIC MINERALS
   3. 23 -- CONSTRUCTION
      1. 237120 -- OIL AND GAS PIPELINE AND RELATED STRUCTURES CONSTRUCTION
   4. 31 -- MANUFACTURING
      1. 311711 -- SEAFOOD CANNING (INCLUDES FISH AND MARINE ANIMAL OILS PRODUCED IN A CANNERY)
      2. 311712 -- FRESH AND FROZEN SEAFOOD PROCESSING
   5. 324 -- PETROLEUM AND COAL PRODUCTS MANUFACTURING
      1. 324110 – PETROLEUM REFINERIES
   6. 333 -- MACHINERY MANUFACTURING
      1. 333132 -- OIL AND GAS FIELD-TYPE DRILLING MACHINERY AND EQUIPMENT (EXCEPT OFFSHORE FLOATING PLATFORMS) MANUFACTURING
   7. 42 -- WHOLESALE TRADE
      1. 424460 - FISH AND SEAFOOD MERCHANT WHOLESALERS
   8. 44 RETAIL TRADE
      1. 445220 -- FISH AND SEAFOOD MARKETS
   9. 48 -- TRANSPORTATION AND WAREHOUSING
      1. 481111 -- SCHEDULED PASSENGER AIR TRANSPORTATION
      2. 481211 -- NONSCHEDULED CHARTERED PASSENGER AIR TRANSPORTATION
      3. 486110 -- PIPELINE TRANSPORTATION OF CRUDE OIL
      4. 486210 -- PIPELINE TRANSPORTATION OF NATURAL GAS
      5. 486910 -- PIPELINE TRANSPORTATION OF REFINED PETROLEUM PRODUCTS
      6. 486990 -- ALL OTHER PIPELINE TRANSPORTATION
      7. 488119 – OTHER AIRPORT OPERATIONS
      8. 488190 -- OTHER SUPPORT ACTIVITIES FOR AIR TRANSPORTATION
   10. 61 -- EDUCATIONAL SERVICES
       1. 611310 – COLLEGES, UNIVERSITIES, AND PROFESSIONAL SCHOOLS
       2. 611430 -- PROFESSIONAL AND MANAGEMENT DEVELOPMENT TRAINING
       3. 611513 – APPRENTICESHIP TRAINING
       4. 611519 – OTHER TECHNICAL AND TRADE SCHOOLS (INCLUDES MARINE NAVIGATIONAL SCHOOLS)
       5. 611699 -- ALL OTHER MISCELLANEOUS SCHOOLS AND INSTRUCTION
       6. 611710 -- EDUCATIONAL SUPPORT SERVICES
       7. 713930 -- MARINE BASINS, OPERATION OF [INCLUDES BOATING / SAILING CLUBS]
   11. 81 -- OTHER SERVICES (EXCEPT PUBLIC ADMINISTRATION)
       1. 813910 -- SHIPPING COMPANIES' ASSOCIATIONS
   12. 92 -- PUBLIC ADMINISTRATION
       1. 924110 -- NOAA (NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION)
       2. 926120 -- MERCHANT MARINE (EXCEPT ACADEMY)
       3. 928110 -- MARINE CORPS, NAVY
   13. VISITOR INDUSTRY
       1. 48 -- TRANSPORTATION AND WAREHOUSING
          1. 487210 -- SCENIC AND SIGHT-SEEING TRANSPORTATION, WATER [INCLUDES FISHING CHARTERS
          2. 487990 -- SCENIC AND SIGHT-SEEING TRANSPORTATION, OTHER
       2. 56 -- ADMINISTRATIVE AND SUPPORT AND WASTE MANAGEMENT AND REMEDIATION SERVICES
          1. 561311 -- SHIP CREW EMPLOYMENT AGENCIES
          2. 561599 -- TICKET (E.G., AIRLINE, BUS, CRUISE SHIP, SPORTS, THEATRICAL) OFFICES
       3. 71 -- ARTS, ENTERTAINMENT, AND RECREATION
          1. 712110 -- MARINE MUSEUMS
          2. 712120 -- HISTORICAL SHIPS