CTCI Cheat Sheet 2026: One-Page Review of Must-Know Facts

What This Cheat Sheet Covers (and What It Doesn't)

This page condenses the must-know facts for the Concrete Transportation Construction Inspector credential administered by the American Concrete Institute (ACI). It is a fast-review companion, not a replacement for working through the actual reference documents you are allowed to bring into the exam room. If you are still deciding whether to pursue the credential, start with What Is CTCI Certification? and come back once you are committed.

One point of scope worth stating plainly: everything below refers to the full Inspector credential, not the legacy Associate examination. Older ACI policy documents still use Associate terminology, and you may run into them while researching. The full-Inspector provisions are what apply here, and the current program uses the term In-Training for candidates who pass the exams but have not yet accumulated the required experience.

The Credential at a Glance

Note the word "approximately" on both question counts. The counts are approximate component sizes, so do not plan around a rigid 100-question combined exam. For a deeper look at how scoring thresholds work in practice, see CTCI Passing Score 2026: Exactly What You Need to Pass.

Exam Format: Two Tests, Two Pass Marks

The Written Inspection Exam

This is the larger of the two tests. With roughly 80 multiple-choice questions and three hours, you have a little over two minutes per question on average. That sounds generous until you factor in the open-book element: questions that require you to locate a table, a tolerance, or a cold-weather protection requirement take longer than recall questions. The exam draws on the reference documents listed in the JTA (covered below), so your time budget depends heavily on how well you know where things live in each document.

The Plans-Reading Exam

The plans-reading exam is shorter, at roughly 20 multiple-choice questions in one hour, and it is a separate pass/fail event. Candidates who are strong on field experience sometimes underestimate it. Interpreting sections, details, reinforcement callouts, notes, and dimensions from drawings is its own skill, and it is not rescued by a strong score on the written exam.

The One-Year Linkage Rule

If you pass one exam and do not pass the other within one year, both exams must be retaken. Treat the first pass as the start of a countdown, and avoid scheduling the second exam at the very end of the window with no room for a retest. For realistic difficulty expectations on both components, read How Hard Is the CTCI Exam? Complete Difficulty Guide 2026.

Eligibility and the Field Testing Prerequisite

ACI offers three alternative routes to eligibility, based on a combination of education and relevant work experience:

1. At least two years of college or technical school (a minimum of 60 credit hours) plus two years of relevant work experience.
2. A high-school diploma or equivalent plus three years of relevant work experience.
3. Five years of relevant work experience.

The experience must be employer-verified and must demonstrate three things: inspection decision-making, compliance evaluation, and documentation/reporting. In other words, simply being present on a concrete job site is not the same as qualifying experience. If you spent years as a laborer or finisher without making inspection judgments or writing reports, expect scrutiny. Our full breakdown is in CTCI Requirements 2026: Eligibility, Prerequisites & How to Qualify.

The Field Testing Condition

Candidates must hold current ACI Concrete Field Testing Technician, Grade I certification. There is a second path: you may have previously held that certification and then pass its current written examination within one year of the first Inspector examination you pass. Either way, the field-testing credential is a hard condition, so do not sit the Inspector exams and assume it can be sorted out later.

The 22-Line Reference Map

The scope comes from ACI's Job Task Analysis for the Concrete Transportation Construction Inspector credential, approved April 5, 2021. Its 22 lines are source headings (reference and knowledge sections plus the plans-reading section), and they are not 22 percentage-weighted domains. Do not assume equal weighting, and do not assume ACI has published a per-domain question count. For a line-by-line walkthrough, see CTCI Exam Domains 2026: Complete Guide to All 22 Content Areas.

A small quirk: the JTA's reference table lists ACI 347R while its body heading says ACI 347. This guide uses the body heading, so do not be alarmed if you spot the mismatch when reading the source document yourself.

High-Yield Technical Facts by Topic

Because the exam is open book, the goal is not rote memorization of every number. The goal is knowing the concepts well enough to recognize what a question is really asking, and knowing which document answers it. Here is how to think about the heaviest-use areas for a transportation-focused inspector.

Open-Book Tactics for the Inspector Exams

"Open book" does not mean easy. It means the exam is designed so that recall alone is not enough, because the questions assume you can navigate real reference documents under time pressure. Your references are the authorized materials, and the CP-31 Transportation Inspector Reference Package is the standard package associated with this credential (more on pricing below).

• Tab and annotate your authorized references. Check with your sponsoring group on what annotation and tabbing is permitted before exam day.
• Build a personal index. Within what is allowed, know which document answers which type of question (tolerance, weather limit, curing, consolidation, plan callout).
• Do the lookup questions second. Answer the questions you know cold on the first pass, then spend leftover time on the lookup-heavy ones.
• Practice reading drawings separately. The 1-hour plans-reading exam rewards fluency with symbols, sections, and notes, not speed with a handbook.

For a structured approach to preparation, the CTCI Study Guide 2026: How to Pass on Your First Attempt goes deeper, and you can pressure-test your recall with the timed questions on the CTCI practice test site.

Fees, Packages, and Scheduling Mechanics

There is no single national fee schedule for these exams. Pricing is set by local sponsoring groups and resource centers, so the same exams can cost different amounts depending on where and through whom you test. The figures below are provider-specific examples, not a national tariff.

Note that the Las Vegas listing does not include a review class. Always read what a provider's package actually contains before comparing prices. A bundle that includes the reference package can be cheaper than buying the exams and CP-31 separately, but only if you actually need the package. See the full cost picture in CTCI Certification Cost 2026: Complete Pricing Breakdown, and check testing windows in CTCI Exam Dates 2026: Testing Windows, Deadlines & Scheduling.

Five-Year Cycle, In-Training Status, and Recertification

Certification lasts five years. Recertification requires passing both Inspector exams again and meeting the field-testing condition. Put the renewal date on your calendar the day you certify, because the process involves scheduling two exams through a sponsoring group, not just submitting a form.

The current program also offers In-Training recognition for candidates who have satisfied the exams and the field-testing condition but have not yet completed the required experience. This is useful for newer professionals who can demonstrate technical knowledge early and complete their experience while working toward full certification. It is not a different exam or an easier track.

If you are weighing the career upside of the credential, our analyses in Is the CTCI Certification Worth It? Complete ROI Analysis 2026 and CTCI Salary Guide 2026: Complete Earnings Analysis cover the economics, and CTCI Jobs looks at who hires inspectors.

A Domain-Ordered Review Sequence

This is the one place in this article where we talk about scheduling. Rather than a generic plan, sequence your review by how the references build on each other: vocabulary first, then specifications and tolerances, then field-process documents, then structure-specific guides, then plans.

Why this order? Terminology and specifications give you the vocabulary every other document assumes, and weather and curing questions are scenario-heavy, so they benefit from already knowing placement and consolidation basics. Plans-reading goes last only because it ties everything together, though you should practice it throughout if drawings are unfamiliar. Learn what to expect from first-time takers in CTCI Pass Rate 2026: What the Data Shows.

Frequently Asked Questions

For questions about meaning and terminology, see What Does CTCI Stand For?, and when you are ready to test yourself against realistic questions, head to the main CTCI practice test platform.