What Does OCCO Mean?

The Short Answer: What OCCO Stands For

OCCO stands for Overhead Crane Certified Operator. It is a certification for people who operate overhead cranes, issued through the Carpenters International Certification Council (CICC), which is associated with the United Brotherhood of Carpenters (UBC). If you arrived here after seeing "OCCO" on a job posting, a union training notice or a certification directory, that is the meaning this site covers, and it is the credential our practice materials at OCCO Exam Prep are built around.

The acronym is shared by several unrelated credentials in other fields, so a quick search can return results about entirely different certifications. Everything on this page is about the overhead crane operator credential only. If you want the broader definition pages on this site, you can also read What Is OCCO?, What Does OCCO Stand For? and OCCO Meaning.

Who Stands Behind the Credential

The governing body is the Carpenters International Certification Council. CICC runs certification programs tied to the United Brotherhood of Carpenters, and the OCCO is one of its operator-focused examinations. Written exams are delivered through Pearson VUE, coordinated through CPS HR Consulting, while candidates route testing requests through a Local Training Center.

Reading the Title Word by Word

Each word in the name tells you something about what the credential is meant to prove.

• Overhead Crane: The equipment class. Overhead cranes run on elevated runways and move loads across a facility, which makes inspection, load control and awareness of people below central concerns.
• Certified: The person has passed an examination program rather than simply completing a course or logging seat time.
• Operator: The credential targets the person at the controls, not the engineer, rigger or inspector, although the operator must understand how those roles connect to the lift.

For a plain-language walkthrough of the same ground, see What Does OCCO Mean? and What Is A OCCO?.

Why the Acronym Causes Confusion

Four letters can only stretch so far, and several fields have claimed "OCCO." That is why candidates sometimes land on pages about the wrong credential, quoting fees, dates or pass rates that belong to something else entirely. A few habits keep you on track:

1. Confirm the issuer. For this credential it is CICC, with the program page at ubccertifications.org.
2. Confirm the exam format. Ours is a Pearson VUE-delivered written exam plus a hands-on practical, both on overhead cranes.
3. Be skeptical of any source that describes a different testing body, a different question count or a different subject area.

The same caution applies to numbers. This article does not quote a fee schedule or a historical pass rate because a verified current figure was not available to us, and it is better to say so than to guess. For the evidence that does exist, see OCCO Certification Cost 2026 and OCCO Pass Rate 2026.

What Earning the Credential Involves

Certification requires passing both a knowledge-based written examination and a separate hands-on practical examination. Passing one does not carry the other.

The practical description above is an overview drawn from indexed official excerpts, not a full scoring rubric. We have not seen a complete practical timer or point scheme, so check the current CICC materials and your Local Training Center before you assume how the practical is graded.

The Written Exam at a Glance

The current written form is Form 090201, effective March 1, 2026, replacing Form 090102. It contains 80 questions: 65 scored items and 15 unscored experimental items. You will not know which items are experimental, so treat every question as if it counts.

If you see an older source describing a 100-question exam, it is out of date. The 80-question structure is the current one.

The exam is closed-book and runs 3 hours. With 80 questions in that window you have comfortable pacing room, so the real risk is not speed but misreading a question that hinges on a precise safety rule. For a candid look at where candidates struggle, read How Hard Is the OCCO Exam?.

The Four Exam Domains

The written exam is organized under four headings. The indexed scored-item allocations are 17, 17, 19 and 12 respectively. We are not converting those counts into percentage weights, because the official percentages were not available to us.

The domains overlap more than the list suggests. A question about a worn component is simultaneously a Crane Components question and a Pre-Job Inspections question. Our complete guide to the four OCCO content areas goes deeper on each heading, and the OCCO cheat sheet condenses the must-know facts.

Eligibility and Registration Mechanics

Issuer-indexed eligibility for the OCCO includes UBC membership, the Certified Rigger and Signaler (CRS) prerequisite and current medical verification. The UBC registration page specifies membership requirements of age 18 or older and eligibility to work in the United States or Canada.

Treat that as a starting point, not a complete checklist. We have not independently verified every eligibility rule, and we are not adding training-hour thresholds that were not confirmed. Our OCCO requirements page covers how to qualify, and you should confirm the current rules with CICC or your Local Training Center before you plan your timeline.

Scheduling the written exam

• Start with the Local Training Center. Submit your testing request there before you try to schedule.
• Match your name to your ID. The name on your registration must exactly match your test-day identification.
• Request accommodations early. Obtain CICC approval for any accommodation before you register.
• Know the 48-hour rule. Cancellations and reschedules must satisfy Pearson's 48-hour requirement.
• A no-show restarts the process. You would need to submit a new testing request through the Local Training Center.

For timing questions, see OCCO exam dates and scheduling.

How long the credential lasts

The indexed CICC recertification information says certifications are valid for four years from the last day of the month granted, and describes written reexamination for renewal. The full renewal policy was not available to us, so confirm the current process with CICC well before your expiration month.

Where the Credential Gets Used

The OCCO sits inside the United Brotherhood of Carpenters certification ecosystem, so its most natural home is union-affiliated construction and industrial work where overhead cranes are part of daily operations. Employers and training programs that value documented operator competency are the ones most likely to care about it.

We are deliberately not quoting salary figures or a certification pay premium, because no verified data supports a specific number. If you are weighing the investment, our OCCO jobs, salary guide and worth-it analysis pages lay out what is known and what is not.

Sequencing Your Preparation by Domain

You do not need an elaborate study system. You need an order that follows how the knowledge builds. Components come first because everything else refers back to parts, and safety comes last because it ties the other three together.

Practice questions should map to these four domains and nothing else; if a question covers a topic outside them, it is not helping you. For a fuller plan, see the OCCO study guide, the OCCO training overview and our practice test. Remember that the written exam is only half the credential, so leave room to prepare for the hands-on practical as well.

Frequently Asked Questions