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Certifications, Prequalifications & Labs

Rii maintains many state and municipal registrations, prequalifications and certifications nationwide, providing services to both the public and private sectors. These include participation and certification in many disadvantaged, minority, female and women-owned business programs. For an entire list of our current certifications, please see the list below.

ISO 9001:2008
Rii has most recently been awarded the ISO 9001 certification for quality management systems.
ISO 9001:2008 Certified Quality Management System

Certifications - National
Women’s Business Enterprise National Council (WBENC)WBE
Certifications - Ohio
City of CincinnatiMBE/WBE
City of Cleveland FBE/MBE
City of Columbus FBE
City of Springfield FBE
Cuyahoga County SBE
Cleveland Hopkins International Airport (CHIA) DBE
Metropolitan Sewer District of Greater Cincinnati (MSDGC)    SBE
Northeast Ohio Regional Sewer District (NEORSD) SBE/WBE
Ohio Turnpike Commission MBE/FBE
State of Ohio Unified Certification Program (UCP) DBE
Encouraging Diversity, Growth & Equity EDGE
Certifications – Other States
City of Indianapolis WBE
Illinois Department of Transportation DBE
Indiana Department of Transportation DBE
Missouri Regional Certification Committee DBE
Pennsylvania Unified Certification Program MBE/WBE
State of Tennessee WOB

DOT Prequalifications
Rii has been pre-qualified to perform the following services:

Agency Ohio DOT Indiana DOT KY Transportation Cabinet Penn DOT
Non-Complex Roadway Design
($300,000 or less)
Complex Roadway Design  
Right of Way Plan Development      
Subsurface Utility Engineering  
Level 1 & 2 Bridge Design ✔ (Level 1)
(Spans under 500')
Bicycle Facilities & Enhancement Design      
Minor Bridge Inspection      
Geotechnical Engineering Services
Geotechnical Testing Laboratory
Geotechnical Field Exploration
Geotechnical Drilling Inspection
Environmental Document Preparation – CE      
ESA Screening, Phase I & II ESA  
Ground Penetrating Radar      
Design Support Services      
Construction Inspection & Support Services      
Traffic Data Collection      
Highway Noise & Air Quality Analysis      
UST & Hazmat Site Analysis
Construction Engineering      

Laboratory Qualifications
In addition to our main offices, Rii maintains laboratories at the Columbus, Cleveland, and Cincinnati, Ohio, offices, which contain a majority of the latest equipment for asphalt, concrete and soil testing. Equipment is calibrated annually, and, to comply with the requirements of ASTM E-329, is inspected and certified by the CCRL and AASHTO.

Rii complies with the requirements of ASTM D-3666, D3740 and C-1077, and participates in proficiency sample programs for asphalt, concrete and soils.  

Laboratory Certifications
Information regarding our three laboratories, including their respective accreditations, can be viewed online here:


Department of Commerce’s National Voluntary Laboratory Accreditation Program
Rii participates in the AASHTO AMRL and CCRL accreditation programs that are also administered by NIST inspectors in lieu of the NVLAP program. The AASHTO certification also includes a proficiency testing program that is not part of the NVLAP.