Safety, Standards, and Operator Responsibilities
The operator's duty is personal
The operator is responsible for safe operation and has stop-work authority. Know and follow OSHA 1926 Subpart CC, ASME B30.5, the manufacturer's manual, and the load chart. Certification and qualification are required; the operator must be trained on the specific crane type and familiar with its controls, safety devices, and charts. Pre-shift inspections, refueling precautions, fire extinguisher readiness, fall protection, lockout/tagout during maintenance, and power-line safety are operator concerns. Do not operate a crane with an inoperable safety device, an unreadable load chart, or unsafe ground conditions. Report incidents and deficiencies promptly.
Traps
Questions suggest the operator can rely on someone else's judgment for capacity or setup. The operator still must verify. Certification does not replace training on a particular crane. Safety devices may not be bypassed. Annual inspections do not replace daily pre-shift inspections. "Competent person" and "qualified person" are not interchangeable. A lift director or supervisor can plan the lift, but the operator retains the duty to refuse an unsafe operation.
Rule of thumb
When in doubt, stop, lower the load to a safe position, and verify with the manual, chart, supervisor, or engineer before continuing.