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.
Other Quality Control, Testing and Inspection Services: Ammunition and Explosives
Possible NAICS Codes
541330 – Engineering Services
325920 – Explosives Manufacturing
541380 – Testing Laboratories and Services
541620 – Environmental Consulting Services
336419 – Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing