To purchase refrigerants, Section 608 certification is required for which refrigerants?

• A. HCFC, HFC
• B. All refrigerants
• C. CFC only
• D. CFC, HCFC, HFC

Answer: (D)

Section 608 certification covers the regulated refrigerants used in most appliances and equipment, and these are categorized mainly as CFCs, HCFCs, and HFCs. To purchase refrigerants, a technician must be certified for all these groups because each category has potential to harm the ozone layer or contribute to greenhouse effects if released improperly, so handling and purchasing them requires proper training and verification. Therefore, the option that includes CFC, HCFC, and HFC covers all the regulated classes and is the correct choice. Choices that omit one category or imply all substances are regulated don’t align with the EPA’s rules for Section 608.