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Washington D.C. Certifications

DC Licensed Professional Engineers
Guillermo Mercado, P.E.
DC Land Surveyor
Thomas M. Yoakum, L.S.
Fidencio Delfin, L.S.
Metropolitan Washington Unified Certification Program: Disadvantaged Business Enterprise (DBE)
Valid for District Department of Transportation and for Washington Metropolitan Area Transit Authority (Metro)

NAICS Codes
541330 – Engineering Services
541370 – Surveying & Mapping (except Geophysical) Services
488490 – Other Support Activities for Road Transportation
 
Metropolitan Washington Airport Authority: Disadvantaged Business Enterprise (DBE) and Local Disadvantaged Business Enterprise (LDBE)
DBE NAICS Codes
541330 – Engineering Services
541370 – Surveying and Mapping (except Geophysical) Services
237310 – Highway, Street, and Bridge Construction (Construction
management, highway, road, street and bridge)
237990 – Other Heavy and Civil Engineering Construction Except,
Dredging and Surface Cleanup Activities (Construction
Management, Mass Transit)
LDBE NAICS Codes
541330 – Engineering Services
541370 – Surveying and Mapping (except Geophysical) Services
Washington Suburban Sanitary Commission: Minority Business Enterprise (MBE) and Registered Vendor