HVAC Technician License Requirements in Illinois
License Not RequiredLast verified March 24, 2026
Agency And Exam
Issuing agency: Illinois Department of Public Health
Official licensing agency website
Exam provider: Not listed
Reciprocity And License Levels
License levels
Not listed
Reciprocity states
None listed
Notes
Illinois does not require a statewide HVAC technician license. Licensing is handled at the local (city/county) level. Chicago and other municipalities have their own HVAC licensing requirements. EPA 608 certification is required federally for refrigerant handling. Verify local requirements.