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: Engine Accessories
Possible NAICS Codes
924110 – Administration of Air and Water Resource and Solid Waste Management Programs
921190 – Other General Government Support
811210 – Electronic and Precision Equipment Repair and Maintenance
541380 – Testing Laboratories and Services