ESCO Institute released an updated Section 608 test bank in August 2026, supported by its tenth-edition preparation manual. The update concerns technician knowledge of refrigerant handling, recovery and related requirements.
Section 608 certification applies to technicians performing covered work that could release refrigerants. It is not a certification for a homeowner's HVAC system. EPA describes different certification types for different equipment, along with Universal certification.
For homeowners, the practical distinction is straightforward: ask whether the technician has the certification appropriate to the refrigerant work being performed. Certification alone is not a guarantee of comfort, indoor air quality or energy savings. EPA states that Section 608 credentials do not expire, so the arrival of a revised preparation manual does not mean every existing credential has expired.
Sources: ESCO preparation manual; EPA technician certification requirements.
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