Minnesota Department of Transportation

511 Travel Info

Twin Cities Metro District Materials

Worker inspecting

Independent Assurance

The Metro Materials Independent Assurance unit fulfills the federal requirement (FHWA: 23 CFR 637) which necessitates that for all federal-aid highway projects, state DOT’s have an approved Quality Control/Quality Assurance-Acceptance program in place to ensure compliance with the regulations. The Independent Assurance (IA) Program provides an unbiased check and review on all contractor and agency testing procedures, personnel and equipment. IA split materials samples are also taken and tested at the state lab in Maplewood.

In addition Metro IA personnel provide knowledgeable technical assistance and training for project engineers, inspectors and technicians for state, county, city, contractors, consultants and the MnDOT Technical Certification unit. Metro IA is also responsible for processing the final materials exception summary certification sheets and packet.


IA Documents

Materials Exception Summary documents

If you require any of the documents in an alternative format, please contact us.