ACI will grant certification only to those applicants who meet both of the following requirements:
- A passing grade on the ACI written examination; AND
- Successful completion of the ACI performance examination.
The 90-minute written examination is closed-book and consists of approximately 70 multiple-choice questions. There are eight to twelve questions on each of the ASTM test methods and practices. To pass the written examination, BOTH of the following conditions must be met:
- At least 60% correct for each of the required test methods and practices; AND
- A minimum score of 70% overall.
The performance examination is also "closed book" and requires actual demonstration of four of the required test methods and practices. The examinee is judged on his/her ability to correctly perform (or describe, where allowed) all of the required steps for each procedure.
Certification is valid for five years; recertification at the end of that term requires successful completion of both the written and performance examinations.