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State Requirements

HVAC License Requirements
in Missouri

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

No State License RequiredEPA 608 Required

Key Takeaways

Missouri 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: Missouri Division of Professional Registration
Regulatory Authority
Regulatory Body
Missouri Division of Professional Registration
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Additional Notes
Missouri does not require a statewide HVAC license. Many cities such as St. Louis, Kansas City, and Springfield require local mechanical contractor licenses and 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 Missouri Division of Professional Registration before applying.
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