This means that you'll be able to search for NAICS codes directly (if that's your jam). We'll do the math; let's make better data on public procurement together.
Possible NAICS Codes
926110 – Administration of General Economic Programs
611699 – All Other Miscellaneous Schools and Instruction
488390 – Other Support Activities for Water Transportation
488330 – Navigational Services to Shipping
423860 – Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers