- What an OCCO Actually Is
- Who Issues the Credential
- The Two-Part Path: Written Exam Plus Hands-On Practical
- Written Exam Format at a Glance
- The Four Written-Exam Domains
- Who Can Sit for It
- How Registration and Scheduling Work
- How Long the Credential Lasts
- Where the Credential Matters on the Job
- What We Can and Cannot Tell You Yet
- Sequencing Your Prep Around the Domains
- Frequently Asked Questions
- An OCCO is an Overhead Crane Certified Operator, credentialed through the Carpenters International Certification Council (CICC).
- Certification requires passing both a closed-book written exam and a separate hands-on practical examination.
- The current written form has 80 questions, 65 scored and 15 unscored, with a 3-hour limit.
- Passing is a scaled score of 500, not a fixed percentage or raw number correct.
What an OCCO Actually Is
If you have landed here asking "what is a OCCO," the short answer is this: an OCCO is an Overhead Crane Certified Operator, a person who has earned the Overhead Crane Certified Operator (OCCO) credential by demonstrating both written knowledge and hands-on skill operating an overhead crane. The acronym is also shorthand for the credential itself, so you will hear people say "I'm an OCCO" or "I'm going for my OCCO."
The credential is built around the daily realities of running an overhead (bridge-type) crane: inspecting the equipment before a shift, moving loads safely, understanding how the crane's components work, and following sound operating and safety practices. It is a practical, job-focused certification rather than an academic one.
Who Issues the Credential
The OCCO is governed by the Carpenters International Certification Council (CICC), which is associated with the United Brotherhood of Carpenters (UBC). That matters for a few reasons. First, it shapes who is eligible to pursue the credential, since the issuer-indexed eligibility includes UBC membership. Second, it determines how testing is administered: the written examination is delivered through Pearson VUE, coordinated through CPS HR Consulting, while the hands-on portion is a separate component.
It is worth being clear about what the OCCO is not. It is not a generic safety-training course, and it is not a substitute for other crane-related certifications from different bodies. It is a distinct CICC credential, and candidates should treat the CICC program materials as the authority for what is tested.
The Two-Part Path: Written Exam Plus Hands-On Practical
Certification as an OCCO requires passing two separate examinations:
- A knowledge-based written examination, closed-book, delivered through Pearson VUE.
- A hands-on practical examination, in which you demonstrate operating skill.
Passing one does not substitute for the other. The issuer's indexed description of the practical includes a one-point rollover hoist of the prop and moving the load through a diagonal course. Those details give you a flavor of what the practical looks like, but they are an overview only. We have not retrieved a complete scoring rubric or a practical-test time limit, so treat any specifics beyond that overview with caution and confirm them with your Local Training Center.
Why the Practical Changes How You Study
Because the practical is a physical demonstration, written-exam knowledge and seat time on a crane reinforce each other. The written domains describe what you should already be doing correctly at the controls.
- Inspection habits tested on paper should be visible in how you approach the crane before moving anything.
- Load-handling concepts from the written exam show up when you move a load through a course.
- Smooth, controlled operation is the practical expression of the safety principles you memorize.
Written Exam Format at a Glance
The current official OCCO Exam Summary Report identifies written Form 090201, effective March 1, 2026, replacing Form 090102. If you find older summaries online that mention a 100-question exam, treat them as outdated. The current form is shorter.
| Feature | Current OCCO Written Exam |
|---|---|
| Form | 090201, effective March 1, 2026 (replaces Form 090102) |
| Total questions | 80 |
| Scored questions | 65 |
| Unscored experimental questions | 15 |
| Time allowed | 3 hours |
| Passing standard | Scaled score of 500 |
| Reference materials | Closed-book |
| Delivery | Pearson VUE, coordinated through CPS HR Consulting |
Two details here trip people up. First, 15 of the 80 questions do not count. They are experimental items being evaluated for future use, and you will not know which ones they are, so you should treat every question seriously. Second, the passing point is a scaled score of 500. That is not a raw percentage and not a fixed number of correct answers, so you cannot reduce it to "get X right and you pass." For a closer look, read OCCO Passing Score 2026: Exactly What You Need to Pass.
The Four Written-Exam Domains
The written examination is organized under four headings. The indexed scored-item allocations are 17, 17, 19, and 12 across the four domains, in the order listed below. We are not converting those counts into percentage weights, because that would be an inference rather than a published figure.
Domain 1: Pre-Job Inspections
17 scored items. This domain centers on verifying that the crane and its working environment are safe to operate before work begins.
- Inspecting the crane and its major parts prior to use
- Recognizing conditions that make a crane unfit to run
- Understanding when a problem must be reported or the crane taken out of service
Domain 2: Crane Operations
17 scored items. This domain covers the act of running the crane and moving loads.
- Controlled, deliberate movement of the bridge, trolley, and hoist
- Handling loads with appropriate attention to path and surroundings
- Working with signals and communication during lifts
Domain 3: Crane Components
19 scored items, the largest published allocation. This domain tests whether you understand what the crane is made of and how the parts function together.
- Major structural and mechanical elements of an overhead crane
- Hoisting and travel mechanisms and their role in operation
- Controls and safety-related devices
Domain 4: General Safety & Operating Practices
12 scored items. This domain covers the broader safety discipline that surrounds every lift.
- Safe work practices around suspended loads and personnel
- Operating habits that reduce risk
- Awareness of site conditions and hazards
Key Takeaway
Crane Components carries the most scored items (19), so it deserves a meaningful slice of your study time even though it is not the most hands-on topic. Candidates who learn to operate by feel but never learn the parts by name are the ones most exposed here.
For a domain-by-domain breakdown, see OCCO Exam Domains 2026: Complete Guide to All 4 Content Areas. Note that these four headings reflect the issuer-indexed written-examination structure, not chapter titles from a prep curriculum, and the detailed task lists beneath each heading come from our understanding of the topic area rather than a retrieved blueprint. Confirm specifics against official CICC materials.
Who Can Sit for It
Issuer-indexed eligibility information points to several elements: UBC membership, the Certified Rigger and Signaler (CRS) prerequisite, and current medical verification. Separately, the UBC registration page specifies that membership requires being 18 or older and eligible to work in the United States or Canada.
We want to be careful here. These items come from indexed excerpts, not from a complete, independently verified eligibility checklist, and we are not adding training-hour thresholds or other requirements that we have not confirmed. If you are planning your path, treat the points above as a starting orientation and confirm the full, current requirements with CICC or your Local Training Center. Our companion piece, OCCO Requirements 2026: Eligibility, Prerequisites & How to Qualify, goes into more detail on how these pieces fit together.
How Registration and Scheduling Work
The mechanics of getting a seat for the written exam have a few specific rules that are easy to overlook:
- Start with your Local Training Center. You submit the testing request through the Local Training Center before you schedule anything with Pearson VUE.
- Names must match exactly. The name on your registration has to match your test-day ID exactly. A mismatch can create problems at the testing site.
- Accommodations need advance approval. If you need testing accommodations, obtain CICC approval before you register.
- Mind the 48-hour rule. Cancellations and rescheduling must satisfy Pearson's 48-hour requirement.
- A no-show costs you a restart. If you miss your appointment, you need to submit a new testing request through the Local Training Center.
How Long the Credential Lasts
The official recertification page index states that CICC certifications are valid for four years from the last day of the month granted, and it describes written reexamination as the route to renewal. We did not retrieve the complete renewal policy, so details such as exact renewal windows or any additional renewal conditions should be confirmed with CICC. The practical takeaway: an OCCO is not a one-and-done credential, and you should calendar your renewal well ahead of the expiration date.
Where the Credential Matters on the Job
Overhead cranes are fixtures in places where heavy materials move through a building rather than across open ground. Think of fabrication shops, manufacturing plants, warehouses, steel and metalworking operations, and similar industrial environments. In those settings, an operator who can show documented competence is simply easier to trust with expensive equipment and with the people working beneath it.
Because the OCCO is tied to the UBC and CICC, it is most naturally relevant to workers who come up through that union-affiliated training pathway. We are not going to claim specific employers, wage premiums, or hiring rates, because we do not have verified data to support them. If you are weighing the career angle, our OCCO Jobs overview, the OCCO Salary Guide 2026, and Is the OCCO Certification Worth It? discuss what can and cannot be said responsibly about the payoff.
What We Can and Cannot Tell You Yet
Honesty about the limits of public information is useful when you are making decisions about a credential. Here is where things stand:
| Topic | Status |
|---|---|
| Written exam form, length, time, scaled passing point | Supported by official indexed sources |
| Four domain headings and scored-item counts | Supported by official indexed excerpts |
| Practical exam structure | Overview only; no complete rubric or timer retrieved |
| Exam fees | No verified current fee schedule |
| Pass rates | No complete historical table obtained |
| Complete eligibility checklist | Not independently verified in full |
| Full renewal policy | Summary only; full policy not retrieved |
Some of the primary documents, including the issuer program page and the exam summary report, could not be retrieved in full during our review, so several facts above rest on official search-index excerpts. Before you build a plan around any single detail, verify it against the current CICC documents. That is also why we do not publish a pass rate; see OCCO Pass Rate 2026: What the Data Shows for how we treat that question.
Sequencing Your Prep Around the Domains
You do not need an elaborate system, but the order in which you tackle the domains can help. A sensible approach is to start with the foundation, then build toward the broader judgment-based material:
Crane Components
- Start here because it has the largest scored allocation (19 items).
- Learn part names and functions until you can describe how the crane moves and lifts.
Pre-Job Inspections
- Connect each component to what you would check before use.
- Practice recognizing conditions that mean the crane should not run.
Crane Operations
- Review controlled movement, load handling, and signals.
- Pair reading with real crane time if your training center provides it.
General Safety & Operating Practices, then full review
- Cover the safety discipline that ties everything together.
- Finish with mixed practice questions across all four domains.
Components first, safety last is a reasonable default because the later domains make more sense once you know the equipment. Adjust the order if your own weak spots point elsewhere. For a fuller plan, see the OCCO Study Guide 2026, and for a quick refresher near test day, the OCCO Cheat Sheet 2026. If you are wondering how demanding the written test is, How Hard Is the OCCO Exam? covers that. You can also work through realistic questions on our OCCO practice test site, which is built around these four domains.
Key Takeaway
Because 15 of the 80 questions are unscored experimental items you cannot identify, there is no safe question to skip or guess carelessly on. Prepare every domain, and remember that the written exam is only half of certification; the practical is separate.
Frequently Asked Questions
OCCO stands for Overhead Crane Certified Operator. It is a credential issued through the Carpenters International Certification Council (CICC), associated with the United Brotherhood of Carpenters. See What Does OCCO Stand For? for more.
The current written form (Form 090201, effective March 1, 2026) has 80 questions: 65 scored and 15 unscored experimental items. You have 3 hours and the exam is closed-book. Older materials listing 100 questions are outdated.
The passing point is a scaled score of 500. It is not a raw percentage or a fixed count of correct answers, so you cannot convert it into a simple number of questions to get right.
No. Certification requires passing both the written examination and a separate hands-on practical examination. The written test alone does not complete the credential.
The official recertification page index states that CICC certifications are valid for four years from the last day of the month granted, with written reexamination described for renewal. Confirm the full renewal policy with CICC.
Start with What Is OCCO Certification?, then look at OCCO Training and OCCO Certification for the broader picture of how the credential fits into a crane operator's path.