What workers comp class code applies to tower climbers?

Tower climbers are typically classified under NCCI class code 3724 (Structural Ironwork - erection) or 7601 (Antenna Installation/Repair). The specific code depends on the work being performed and the state. Some states use proprietary class codes. Code 3724 carries significantly higher rates due to the elevated severity of structural steel erection at height. Code 7601 is more specific to antenna and line work but still carries above-average construction rates. The assigned class code affects premium, and misclassification can result in audit adjustments or coverage disputes. In monopolistic states (Ohio, Washington, Wyoming, North Dakota), the state fund uses its own classification system that may not map directly to NCCI codes. When setting up a new policy, work with your broker to ensure accurate classification of each employee's duties. A company that performs both ground work (class code 8227 for construction consulting or 5606 for contractor executive supervision) and tower climbing should split payroll between applicable codes to avoid overpaying by applying the climbing rate to all employees. Proper classification from day one prevents costly audit surprises.