Class Code 3030
Iron Or Steel Works – Structural
Class Code 3030 covers structural iron and steel works in California — the fabrication, assembly and field erection of structural members used in buildings, bridges and industrial structures. For Sept. 1, 2026 the WCIRB-approved pure premium is $8.428 per $100 of payroll, a key input insurers use to price coverage for employers doing this high-hazard work.
What Class Code 3030 Covers
This classification applies to employers whose primary operations involve structural iron or steel: shop fabrication of beams, columns, girders, trusses and frames; field erection and assembly of those members on building, bridge or industrial jobsites; and onsite repair or modification of structural steel. Activities include cutting and shaping structural members, welding and bolting connections, rigging and hoisting heavy members into place, and attaching decking or bracing. Decorative or non-structural iron (ornamental iron) and light sheet-metal work are typically coded differently, so accurate job-level classification matters. The code covers both shop and field crews when their work is directly tied to structural steel fabrication or erection.
Who It Applies To
- Structural ironworkers and steel erectors on construction sites
- Shop-based structural steel fabricators who cut, drill and assemble members
- Structural welders and bolters who make field connections
- Riggers, signal persons and crew leads engaged in hoisting/setting structural members
- Contractors performing bridge, industrial plant, warehouse or high-rise steel framing
- Maintenance crews performing repair or replacement of load-bearing steel components
Common Job Duties
- Measuring, cutting, drilling and shaping beams, columns and trusses in a fabrication shop
- Tack and full welding of structural connections and flange work
- Bolting, torqueing and installing high-strength bolts and shear connectors
- Rigging, signaling and using cranes or hoists to lift and set heavy members
- Working and connecting members at elevations on girders, frames and catwalks
- Reading structural drawings and laying out parts for fit-up and assembly
- Performing field repairs, alignment, and final fit adjustments on installed steel
Common Injury Risks
Understanding the $8.428 Rate
The WCIRB pure premium of $8.428 per $100 of payroll represents the estimated loss cost (claims-only) for this classification and date. Insurers use that pure premium as a base and then apply their expense and profit multipliers, plus any experience modification (EMR), payroll allocation and discounts, to determine the final premium charged. Final cost is affected by your company’s loss history, accurate classification of work, payroll reporting, deductible programs, and state assessments or credits.
Cal/OSHA Compliance Requirements
Work under Class 3030 falls squarely under Cal/OSHA Construction Safety Orders (Title 8) requirements for steel erection, fall protection, crane and rigging safety, and welding/hot work controls. Employers must implement fall protection systems, designate competent persons for rigging and steel erection tasks, ensure qualified crane operators and signal persons, control welding fume and hot work hazards, and comply with Cal/OSHA reporting when serious injuries occur. Maintaining training records, equipment inspections and written rescue plans are essential to demonstrate compliance.
How Key HR Helps Employers Under Class Code 3030
A PEO like Key HR can help structural iron/steel contractors lower workers' comp exposure through tailored safety programs (fall protection, rigging and welding training), proactive loss-control site audits, and centralized claims management that speeds medical triage and return-to-work placements. Key HR also handles payroll accuracy, class-code review, audit support and access to group purchasing power and safety resources that can improve your experience modification and reduce long-term premium.
Get a QuoteFrequently Asked Questions
Does Class Code 3030 apply to both shop fabrication and field erection?
Yes. 3030 covers employers whose primary work is structural iron or steel fabrication and the field erection/assembly of those structural members. However, ornamental iron and other non-structural metal work are usually assigned to different class codes, so describe job tasks precisely during quotation and audits.
What practical steps reduce workers' comp costs for structural steel work?
Focus on documented fall-protection programs, qualified rigger and crane operator certifications, welding ventilation and hot-work permits, preventive equipment inspections, pre-task hazard analyses, and a formal return-to-work program. Consistent safety training and prompt, managed claims response are the fastest ways to lower your EMR and premium over time.
What records will an auditor or regulator expect for Class 3030 operations?
Keep detailed payroll records tied to job classifications, subcontractor agreements, training and certification logs (riggers, signal persons, welders), equipment and crane inspection reports, jobsite hazard assessments, hot work permits, accident reports and OSHA/Cal/OSHA injury notifications. Clear documentation reduces reclassification risk and supports accurate premium audits.
Quick Facts
- Class Code
- 3030
- Classification
- Iron Or Steel Works – Structural
- Pure Premium Rate
- $8.428 / $100 payroll
- Effective Date
- September 1, 2026
- Source
- WCIRB Approved Filing
Manage Workers' Comp Through a PEO
Key HR provides pay-as-you-go workers' comp for California employers — no large deposits, no audits, better rates.
Get a Quoteor call (800) 922-4133Ready to Simplify Workers' Comp for Class Code 3030?
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