What Is the EPA 608 Certification? The EPA 608 Certification is a mandatory requirement for any technician who works with refrigerants in air conditioning and refrigeration systems. It stems from the U.S. Clean Air Act, which enforces the safe handling and recycling of ozone-depleting substances (ODS). These substances, such as chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs), and hydrochlorofluorocarbons (HCFCs), have a significant impact on the environment, particularly the depletion of the ozone layer. There are four types of EPA 608 certifications: Type I : For servicing small appliances containing five pounds or less of refrigerant. Type II : For high-pressure systems, including residential air conditioners and commercial refrigeration systems. Type III : For low-pressure systems, like chillers. Universal : This certification covers all three types, allowing technicians to work with small appliances, high-pressure, and low-pressure systems. Importance of t...