Skip To Content

Approved Auditor’s List



In order to increase the credibility of the Plant Certification Program, all Concrete Ontario plant certifications must be completed by a third-party independent engineer.

How it Works

The link below is a list of auditors qualified to “certify” concrete facilities and mobile mixers for membership through the Concrete Ontario Audit and Check List, as well as conduct ECO plant certifications according to the guidelines set forth by the Concrete Ontario Board of Directors.

PLEASE NOTE: Engineers that wish to participate in our certification process must meet additional requirements and complete the Third Party Engineer Registration Form below.

Third Party Engineer Registration Form
View Resource
Approved Seal
Approved Auditors List
View Resource

Other Certifications Available

Active Plants

Learn More

Production Facilities Certification

In conjunction with consultants, the Ministry of Transportation of Ontario (MTO) and the Ontario Provincial Standards and Specifications (OPSS), the Concrete Ontario Technical Committee has developed a detailed concrete facility certification process.

Learn More

Sub-Contracted Ready Mixed Concrete Truck Certification

The Concrete Ontario Truck Certification or Concrete Ontario Sub-Contracted Ready Mixed Concrete Truck Certification is also specified by MTO, Municipalities and many owners.

Learn More

Seal of Quality Concrete

The granting of a Seal of Quality Concrete or a Seal of Special Quality Concrete is restricted to RMCAO members who possess a valid “Certification of Ready Mixed or Mobile Mix Concrete Production Facilities”

Learn More

Delivery Vehicle Certification

Concrete Ontario’s Approved Quality Program© for Ready Mixed Concrete Production Facilities includes certification cards for all concrete mixing and delivery vehicles (Section 4. Inspection and Certification of Delivery Vehicles). Drivers must place truck cards visibly on the interior of the rear window of the delivery vehicle.

Learn More



© 2024 Concrete Ontario. All Rights Reserved.

Web Design by NVISION