Your Illinois training starting point.
Match the resource to your credential before you choose a course.
Find the authority for your license
Start with the official government directory for Illinois. Find the agency or local authority that regulates your planned HVAC work. This page does not establish required hours, a licensing exemption, or a course approval.
Open the official state government directoryApproximately $40
Online continuing education is a separate expense. This is a planning estimate; confirm the actual fee, course hours, provider approval, and credit eligibility for your state and credential before enrolling.
Check your state and credentialCheck four things before enrolling.
- The exact credential and work classification.
- The current renewal deadline and required hours, if any.
- The approval of the provider and the specific course.
- How completion is reported and which records you must keep.
Federal refrigerant certification
Use EPA’s Section 608 requirements for covered work. A federal refrigerant credential and a state contractor license serve different purposes.
EPA certification requirements and programsResource review: October 12, 2026. Confirm the current rule with the authority before paying for a course. HVAC.info lessons carry no state renewal credit.