CFC Study Guide 2026
Everything you need to pass the CFC exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CFC Exam Format at a Glance
📚 CFC Topics to Study (69)
✍️ Sample CFC Questions & Answers
1. Which scenario requires an owner to file a report with the EPA under Section 608 leak rate provisions?
Owners must notify EPA and provide documentation when a leak rate exceeds the threshold and repairs cannot be completed within the standard 30-day window.
2. In a split-system air conditioner, which component is most likely to cause refrigerant leaks due to vibration fatigue?
Copper refrigerant lines near the compressor experience metal fatigue from compressor vibration, making them a common site for pinhole leaks.
3. What property makes chlorofluorocarbons (CFCs) harmful to the ozone layer?
Chlorofluorocarbons (CFCs) are harmful to the ozone layer because when they reach the stratosphere, intense ultraviolet (UV) radiation breaks them down. This process releases highly reactive chlorine atoms. These chlorine atoms then act as catalysts, repeatedly destroying ozone molecules, which depletes the protective ozone layer and allows more harmful UV radiation to reach Earth.
4. Under EPA regulations, which of the following activities DOES NOT require Section 608 certification?
Installing a pre-charged, self-contained window air conditioning unit does not require Section 608 certification because no refrigerant handling or servicing of the refrigerant circuit is involved.
5. Which condition indicates that an electronic refrigerant leak detector's sensor needs replacement or recalibration?
Both false alarms and failure to detect known leaks indicate a sensor that is degraded, contaminated, or out of calibration and needs service.
6. In the context of CFC certification, what is the most important consideration when implementing automotive air conditioning service?
When implementing automotive air conditioning service, CFC professionals must ensure alignment with industry standards and stakeholder needs. Hasty implementation without proper planning often leads to compliance issues and suboptimal outcomes.