ACI CLTT-2

ACI certification examinations and optional training courses are conducted through an international network of over 135 sponsoring groups. You register and test through a sponsoring group rather than directly with ACI headquarters, so contact one near you for dates, location, and any course offered alongside the exam.

ACI groups its testing programs as assessing the knowledge and ability to perform, record, and report the results of concrete field and laboratory tests. Level 2 sits in the Laboratory Concrete Testing category above Level 1, so expect to be judged on laboratory test execution and on how faithfully you record and report results.

The source material does not publish a format, question count, or time limit for this program. Rather than rely on secondhand figures, ask your sponsoring group directly whether your session includes a written component, a performance component, or both, and how much time is allotted.

No passing score is stated in the available ACI source text. ACI does not publish a universal cut score on these program pages, and any threshold applied to your exam comes from the sponsoring group or the current program documentation. Confirm the requirement in writing before your test date.

Fees are not published in the source material reviewed here. Costs typically vary by sponsoring group and by whether you take an optional training course in addition to the exam, so request a current fee schedule from the sponsoring group you plan to test with rather than budgeting from third-party estimates.

The source does not describe a retake policy, including waiting periods or repeat fees. Retake rules are set through the sponsoring group and program documentation, so ask about the retake process when you register, and find out whether a waiting period applies before you can schedule another attempt.

A validity period is not stated in the source text reviewed here. ACI maintains a certification verification tool, so you can confirm your own record there once certified, and your sponsoring group can tell you the recertification or renewal requirements attached to this credential.

Level 2 assumes laboratory testing competence, so build fundamentals first: work through each test method procedure step by step, then practice with calibrated laboratory equipment until the sequence is automatic. Only after that should you drill recording and reporting, since errors there are a common reason technicians lose points.

Two patterns dominate. First, technicians memorize a procedure's order but cannot explain why a step exists, so they misapply it when conditions vary. Second, they run the test correctly but record or report results in the wrong format or precision. Practice both halves of the job, because ACI frames the assessment as performing, recording, and reporting.

ACI provides a Verify a Certification tool on its website. After you are certified, use it to confirm your status, and expect employers or specifiers to check it the same way. Keep your contact details current with your sponsoring group so your record stays reachable.