What Is OCCO?

What OCCO Actually Is

OCCO stands for Overhead Crane Certified Operator. It is a credential that verifies a candidate can safely inspect, operate and manage an overhead crane, combining a knowledge-based written examination with a hands-on practical examination. If you have seen the same four letters attached to other certifications, set those aside: this article is only about the CICC Overhead Crane Certified Operator program, and everything below applies to that credential alone.

That distinction matters because overhead crane certification is a crowded space. This program is not the NCCCO overhead crane certification, it is not another CICC examination, and it is not a generic crane-safety classroom course. It is a specific credential with its own exam form, its own domains and its own practical component. If you want the shorter definition-style explanations, our pages on what OCCO stands for and what OCCO certification is cover the basics, while this article goes deeper into structure and mechanics.

Who Governs the Credential

The Carpenters International Certification Council (CICC), associated with the United Brotherhood of Carpenters (UBC), governs the OCCO. CICC publishes the program page and the OCCO Exam Summary Report, and it handles the recertification and registration policies. The written examination itself is delivered by Pearson VUE, coordinated through CPS HR Consulting.

In practice, that means you deal with two layers: CICC decides who is eligible, what is tested and how certification is maintained, while Pearson VUE handles the testing environment. Keeping those roles straight helps when you are troubleshooting scheduling, accommodations or ID problems, because the right office depends on the question.

The Two-Part Path: Written Exam and Hands-On Practical

Certification is not awarded for a written score alone. A candidate must pass both the knowledge-based written examination and a separate hands-on practical examination. This is a defining feature of the OCCO, and it sets it apart from credentials that stop at a multiple-choice test.

The written examination

The written portion is closed-book and tests the four domains described below. It is the part most candidates prepare for with practice questions, and it is the portion this site focuses on. You can start with our OCCO practice test to see how scenario-based items about inspections, operations and components feel.

The practical examination

The indexed program description of the practical includes a one-point rollover hoist of the prop and moving the load through a diagonal course. Those are an overview rather than a complete scoring rubric. We did not retrieve a full practical rubric or a practical-test timer, so we will not guess at pass criteria, penalty points or time limits. Treat the practical as hands-on crane handling with precision load movement, and confirm specifics with your Local Training Center.

The Four Written-Exam Domains

The official written-examination headings are four domains. The scored-item allocations indexed from the issuer are 17, 17, 19 and 12, in the order below. We are not converting those counts into percentage weights, because the issuer excerpts we saw did not publish percentages. For a deeper walkthrough, see our complete guide to all 4 OCCO content areas.

Note that these four headings come from the written examination, not from a preparation curriculum. A training course may slice topics differently, so map your study notes back to these domain names when you check your readiness.

Exam Format, Scoring and Version Details

The indexed OCCO Exam Summary Report identifies written Form 090201, effective March 1, 2026, replacing Form 090102. Here is what that form includes:

• 80 total questions: 65 scored and 15 unscored experimental items.
• Time: 3 hours for the written examination.
• Passing point: a scaled score of 500.
• Closed-book: no reference materials during the written test.

You may encounter older directory pages or mirror sites that describe a 100-question exam. That figure is obsolete for the current form, so ignore it. The 15 unscored items are experimental, and you cannot tell which ones they are, so give every question your full attention.

Because the exam is scenario-and-knowledge driven rather than a pure memory dump, expect questions that ask you to apply an inspection finding, identify a component's function or choose the safest next action. If you are wondering how demanding that feels, our OCCO difficulty guide discusses what tends to trip candidates up.

Eligibility Signals You Should Know

Issuer-indexed eligibility information points to three items: UBC membership, the Certified Rigger and Signaler (CRS) prerequisite, and current medical verification. The UBC registration page adds that membership involves being age 18 or older and eligible to work in the United States or Canada.

We are deliberately cautious here. We have not independently verified a complete OCCO eligibility checklist, and we have not found any confirmed training-hour thresholds, so do not assume any. Treat the items above as signals to investigate, and confirm the full list with CICC or your Local Training Center. Our OCCO requirements article tracks what is known and flags what remains unconfirmed.

How Registration and Test Day Work

The logistics are more particular than many candidates expect. Based on the Pearson VUE CICC page, which we retrieved in full, and the indexed CICC registration information:

1. Submit a testing request through your Local Training Center before you try to schedule anything.
2. Match your name exactly. The name on your registration must exactly match the ID you present on test day.
3. Request accommodations early. Obtain CICC approval for accommodations before registration, not after.
4. Respect the 48-hour rule. Cancellations or reschedules must satisfy Pearson's 48-hour requirement.
5. Avoid no-shows. A no-show requires a new testing request through the Local Training Center.

For scheduling windows and deadlines, see OCCO exam dates and scheduling. We do not have a verified current fee schedule, so for pricing context see our OCCO certification cost article, which identifies the evidence gaps rather than inventing numbers.

How Long Certification Lasts

The indexed CICC recertification page states that CICC certifications are valid for four years from the last day of the month granted, and it describes written reexamination for renewal. We did not retrieve the full renewal policy, so details such as exact renewal windows, any practical requirements at renewal and associated fees should be confirmed directly with CICC before you plan around them.

Who Benefits From the Credential

Because the OCCO is tied to the United Brotherhood of Carpenters and its certification council, the natural audience is union-affiliated tradespeople and the contractors and training centers that work with them. Operators in industrial, construction and fabrication settings where overhead cranes move heavy material are the people most likely to find the credential relevant.

We have no verified data on pay premiums, hiring rates or employer demand tied specifically to this credential, so we will not claim any. If you are weighing the career angle, our OCCO jobs, salary guide and ROI analysis discuss what can and cannot be said responsibly.

Sequencing Your Preparation by Domain

You do not need an elaborate method, just an order that respects how the domains build on each other. Inspection knowledge feeds operation, and component knowledge underpins both. Here is one sensible sequence tied to the four domains, which you can compress or stretch as needed. For a fuller plan, see our OCCO study guide.

Finish with practice questions that mix all four domains, because the real exam will not announce which domain a question belongs to. You can run through timed sets on the main practice test site and treat every miss as a pointer back to the relevant domain.

What We Cannot Tell You Yet

Honest preparation means knowing what is unverified. At the time of our last review (October 15, 2026), the following remain unconfirmed:

• A current fee schedule for the written and practical examinations
• A practical-test time limit and full scoring rubric
• A complete historical pass-rate table (see what the pass-rate data shows for what is and is not known)
• The complete eligibility checklist and full renewal policy

Until the primary documents can be reviewed in full, treat anything claiming precise figures in these areas with suspicion. For related definitions, you can also browse what is a OCCO and the broader OCCO certification overview.

Frequently Asked Questions