Boiler Making-Plate Steel-Noc Workers Compensation (class code: 3620) Insurance

At the workplace boilermakers encounter a variety of safety risks and hazards.  The manufacturing process is intricate, complicated and highly dangerous.

Workers operate heavy machinery from cranes to forklifts, and work with hydraulic press machines and other powerful tools in an environment that is not only filled with dust, noise and toxic fumes, but also exposes them to intense heat from furnaces.

Injuries such as bruises, strains, cuts and burns are common but amputations, injuries or fatalities from boiler explosions and long term occupational illness and disease also pose a serious threat to workers’ health and safety.

Boiler Making-Plate Steel - NOC Workers Compensation (Class Code: 3620) Insurance protects workers by providing them financial compensation and medical care for injuries or disabilities that occur during the course of employment.

What is Boiler Making‑Plate Steel‑NOC Workers Compensation (class code: 3620)?

This workers’ compensation classification covers employees engaged in boiler making and plate steel work. It’s a type of employer’s insurance that helps with medical expenses, wage replacement, and rehabilitation when an employee is injured on the job or develops an occupational illness related to their work duties.

Who needs it

Employers in metal fabrication shops, pressure vessel construction, refineries, and industrial maintenance who employ boilermakers or plate steel workers typically carry this coverage. Contractors, manufacturers and site operators who supervise hot work, welding or heavy equipment operations should ensure staff are covered. Some of the same workplaces overlap with related trades such as Steam Pipe or Boiler Insulation Workers Compensation (Class Code 5184) and activities similar to Welding or Cutting NOC Workers Compensation (class code: 3365), so employers should review classifications carefully.

What it typically covers

Standard workers’ compensation coverage usually includes:

  • Medical treatment for work-related injuries and illnesses
  • Temporary wage replacement while an employee recovers
  • Permanent disability benefits where applicable
  • Rehabilitation and retraining expenses
  • Death benefits to dependents if a fatality occurs

Coverage works alongside other commercial protection like general liability, equipment coverage and commercial auto when employees use company vehicles or transport heavy parts. For employers producing related components, see examples such as Valve Manufacturing NOC Workers Compensation (Class 3634) for comparable exposures.

Common exclusions or limitations

Typical exclusions include intentionally self-inflicted injuries, injuries that occur while an employee is committing a crime, and non‑work-related injuries. Underwriting may also limit coverage for certain volunteer activities or subcontractors unless specifically endorsed. Policies vary by jurisdiction and insurer—review policy wording for specifics.

Factors that influence cost

Premiums are driven by payroll size, the job classification’s inherent risk (hot work, heavy lifting, confined space entry), past claims experience, workplace safety programs, and return‑to‑work policies. Underwriting factors include training, equipment maintenance, loss control measures, and whether employees perform high‑risk tasks like welding, cutting or boiler maintenance. A strong safety program and documented training can help reduce rates over time.

Proof of insurance & compliance

Employers are often required to display proof of workers’ compensation coverage at the job site and produce certificates to contractors or regulators. Requirements differ by state and province—check local rules and maintain up‑to‑date certificates to demonstrate compliance.

How to get a quote

To obtain an accurate quote, insurers typically request payroll details by trade, a description of operations, safety program information, and recent loss history. Provide clear job descriptions and any safety certifications to speed underwriting. If you need a tailored estimate, contact a broker or carrier familiar with industrial and fabrication exposures.

Frequently Asked Questions

Does workers’ compensation cover illnesses from long‑term exposure, like hearing loss or respiratory problems?

Yes—occupational illnesses caused or materially aggravated by work conditions can be covered, subject to medical proof and the policy/jurisdiction rules. Employers should document exposures and controls.

Are subcontractors covered by my policy?

Not automatically. Subcontractors may need their own workers’ compensation or to be added by endorsement; always confirm coverage in contracts and request certificates of insurance.

Can a safety program lower my premiums?

Insurers consider loss prevention, training and return‑to‑work programs when underwriting. Demonstrable safety measures and a low claims history can help reduce rates over time.

Still have questions? Talk to a local insurance expert.

Partners, Programs & Market Access


We maintain relationships with nationally recognized and specialty-focused insurance providers that actively underwrite this class of business. Our network includes both admitted and non-admitted markets, allowing us to match risks—from straightforward accounts to more complex or hard-to-place exposures—with appropriate underwriting partners.


Program availability, coverage terms, and underwriting appetite can vary based on operations, location, and loss history, so access to multiple markets is key to securing the right fit. This approach helps ensure broader coverage options and more competitive placement across a range of risk profiles.



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