PSC H222 Equipment and Materials Testing—Railway Equipment

Federal Category 18.4: Equipment Related Services Quality Control

Equipment and Materials Testing: Railway Equipment

Possible NAICS Codes
923120 – Administration of Public Health Programs
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541380 – Testing Laboratories
541330 – Engineering Services
488210 – Support Activities for Rail Transportation
238220 – Plumbing, Heating, and Air-Conditioning Contractors