If you have previously held a CTTP certification in Basic Aggregates, your certification can be renewed by completing the online Basic Aggregates Certification Renewal course. Note that this option is only available to those who have previously attended the standard 2-1/2 day Basic Aggregates course and successfully completed the written and performance exams.

The Basic Aggregates Certification Renewal course consists of 10 modules and a Final Quiz. Each module covers an individual test method and includes a knowledge check (practice questions). To renew your Basic Aggregates certification, you must:

• Register for the course. Note that an individual email address is required to log in (i.e., technicians may not share email addresses).
• You will receive further instructions via email for accessing the course in Blackboard. Please allow 1-2 business days to be added to the course.
• Log in to the Basic Aggregate Online Renewal course
• View all 10 modules
• Complete the knowledge check at the end of each module with a minimum score of 70%
• Achieve a score of at least 80% on the Final Quiz (the Final Quiz will be unlocked after the 10 modules have been completed)

There is no fee for the online course. Upon successful completion, an updated pocket card and certificate will be mailed to the technician.

Basic Aggregates certification is a required pre-requisite for other CTTP certifications, including Concrete Field Testing, Hot Mix Asphalt, Soils, and Concrete Strength. If your Basic Aggregates certification lapses, then these certifications will be revoked until the Basic Aggregates certification is restored.