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State Requirements

HVAC License Requirements
in Wisconsin

Everything you need to know about HVAC licensing in Wisconsin — from required certifications and exams to experience thresholds and application steps.

No State License RequiredEPA 608 Required

Key Takeaways

Wisconsin does not require a statewide HVAC license, but a federal EPA Section 608 certification is mandatory for anyone handling refrigerants. Local permits or registration may still apply.

  • State license: Not required statewide
  • EPA 608 certification: Required (federal)
  • Regulated by: Wisconsin Department of Safety and Professional Services (DSPS)
Regulatory Authority
Regulatory Body
Wisconsin Department of Safety and Professional Services (DSPS)
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Additional Notes
Wisconsin does not require a statewide HVAC license. HVAC contractors must register with DSPS and obtain credentials for certain types of work. Local jurisdictions may require mechanical permits.
Data source: Licensing requirements sourced from official state regulatory body publications and verified against ACCA (Air Conditioning Contractors of America) state licensing guides. EPA Section 608 requirements per 40 CFR Part 82. Last verified: June 2026. Licensing rules change — always confirm requirements directly with Wisconsin Department of Safety and Professional Services (DSPS) before applying.
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