Official Level I Blueprint and Study Strategy
Key Takeaways
- The written exam contains four weighted domains: Scope 15%, Technical Knowledge 13%, Inspection 30%, and Execution 42%.
- Inspection and Execution together account for 72% of the written outline, but every listed subtopic remains testable.
- The Level I outline requires use and recognition of supplied ratings, conditions, and configurations—not calculations of unknown weight, center of gravity, or sling tension.
- The exam references ASME B30.9, B30.10, B30.20, B30.26 and OSHA 1910.184, 1926.251, and 1926.1431; B30.5 is identified for Level II only in the handbook's reference list.
- A reliable strategy is to answer from the controlling tag, manufacturer instruction, standard, or stated scenario and to flag any question that depends on an unsupported assumption.
Official Level I Blueprint and Study Strategy
The four written domains
The current CCO Rigger Level I written examination has 60 questions in 60 minutes with no calculator. Its published domain weights are:
| Domain | Weight | Approximate share of 60 |
|---|---|---|
| Scope of the Rigging Activity | 15% | about 9 |
| Technical Knowledge | 13% | about 8 |
| Rigging Inspection | 30% | about 18 |
| Execution of Rigging Activity | 42% | about 25 |
The question counts are study estimates produced by multiplying the percentages by 60; an actual form may distribute items according to CCO's test specifications. Do not discard a topic because its domain is smaller.
Inspection plus Execution represents 72% of the outline. Spend most practice time making decisions: keep or remove a component, choose compatible gear, identify a prohibited application, place a hitch correctly, protect a sling, and complete a connection. Scope and Technical Knowledge explain why those decisions are safe.
Scope checklist
Scope covers the lift before hardware is tensioned:
- identify the intended travel path;
- verify the supplied load weight;
- identify approved attachment points;
- recognize special handling requirements;
- recognize pinch points, the need for softeners, instability, shock loading, side loading, unsafe body position, and electrical hazards;
- identify other hazards; and
- communicate the hazard identification.
The verbs are important. The Level I candidate verifies known information and recognizes conditions. The Level II outline, by contrast, includes determining load weight and dimensions, calculating center of gravity and sling tension, planning the rigging activity, and selecting equipment for that plan.
Technical Knowledge checklist
Level I candidates must understand and apply the non-inspection provisions relevant to basic rigging in ASME B30.9, B30.10, B30.20, and B30.26, plus OSHA 1910.184, 1926.251, and 1926.1431. The handbook's reference-material section identifies ASME B30.5 for Level II only. Crane operations can still affect a Level I rigger in the field, but B30.5 should not be presented as a Level I written-outline standard.
Study standards by function:
- B30.9: sling selection, identification, use, and inspection.
- B30.10: hooks.
- B30.20: below-the-hook devices.
- B30.26: detachable rigging hardware.
- OSHA 1910.184: general-industry slings.
- OSHA 1926.251: construction rigging equipment.
- OSHA 1926.1431: hoisting personnel with equipment covered by the crane construction rule.
Always pair a consensus-standard rule with manufacturer instructions and the job's governing OSHA provisions.
Inspection checklist
The outline calls for frequent inspection knowledge under the four ASME volumes and the two OSHA sling sections. Practice a repeatable sequence: identification, rated capacity, deformation, wear, cracks or heat damage, moving parts, attachments and terminations, and chemical or environmental damage. A missing or illegible required tag is itself an action item. Remove defective gear from service; do not improvise repairs, field weld load-bearing components, or create a private derating.
Exact removal limits are component-specific. OSHA gives numerical criteria for some items, such as broken wires in wire-rope slings and dimensional changes in metal-mesh sling handles. Other decisions depend on the current ASME edition or manufacturer. Avoid memorizing one universal 10% rule for every item.
Execution checklist
Execution covers six sling groups: alloy chain, wire rope, metal mesh, natural or synthetic fiber rope, synthetic web, and synthetic roundslings. It also covers hardware including shackles, adjustable hardware, links, rings, swivels, blocks, hooks, hoists, dollies, skates, rollers, A-frames, trolleys, compression hardware, beam clamps, softeners, eyebolts, swivel hoist rings, and jacks. Below-the-hook topics include structural lifting beams, plate clamps, and beam or girder clamps. Tag lines, basic knots, securing the load, disconnecting, and stowing gear complete the domain.
Use a decision sequence for each scenario:
- Is the load information known and the attachment approved?
- Is every component identified, inspected, and adequately rated for the stated hitch and direction?
- Do components fit without tip loading, side loading, bunching, binding, or an open latch?
- Is protection installed where an edge could damage the sling?
- Can people remain outside the fall zone and line of fire?
- Is the landing and disconnect plan stable?
Written-test method
At one minute per question, begin with a steady pass through the exam. Answer direct identification and inspection questions promptly. Flag items that require careful reading, then return with the remaining time. Because calculators are not allowed and Level I does not test the Level II calculation duties, do not build a strategy around a formula sheet.
Read qualifiers: before use, each shift, periodic, rated capacity, manufacturer's instructions, and applicable standard can change the answer. Eliminate choices that require a missing tag, exceed a rating, modify gear in the field, put a person under a load, or continue after an unresolved hazard. When two plausible choices remain, select the one supported by the facts actually given rather than an assumption.
No official current handbook basis supports a universal written passing score of 70. The study target is full blueprint competence, not a rumored threshold.
Which two domains make up 72% of the Level I written outline?
Which activity is inside the Level I outline?
Which ASME volume does the current handbook identify as Level II only in its reference-material list?
What is the best response to a test scenario that omits a required component rating?