Concrete Testing Adherence Collaboration (CTAC)

CTAC Training for Observers and Supervisors

The CTAC program continues to improve and change. Through development and expansion, there are always questions. Throughout 2023, the CTAC Team will support the Partners and their Members with regular training and insight into the program and how to best improve Observations and the information that comes from them.

The live training webinars below are available for those that wish to gain additional information to improve their experience with the CTAC program. Please join us for training as noted below. We welcome those not yet involved in the CTAC program. For more information, contact CTAC by emailing, or email Charley Rea at

CTAC Flyer

About CTAC

CalCIMA concrete producer members are able to participate in the Concrete Testing Adherence Collaboration (CTAC). CalCIMA is the California manager for this national program.

CTAC is a program to observe concrete testing procedures on job sites. It was developed as a fair and consistent way to assess technical testing. Test procedures for concrete are important since concrete is in a liquid, or non-final, state when delivered to a job site and still undergoing the curing process before becoming a final product. The goal is to improve quality, facilitate communication, reduce costs, and improve sustainability.

CTAC is non-intrusive observations to monitor that established practices are followed for the obtaining, handling, storing, and transporting of concrete samples. While testing technicians are trained and certified in the proper methods, CTAC observations helps to ensure that those techniques are properly applied at job sites. Data obtained is for informational and educational purposes only.

Participants in the program are able to have access to data and reports based on the observations. There is more information about CTAC available on its main website. This includes instructional materials and what it takes to participate.

To learn more or participate in California, please contact Charley Rea.