Which of the following practices does NOT adhere to EPA regulations for handling refrigerants?

Charging systems with a leaky component does not adhere to EPA regulations for handling refrigerants because it directly contributes to the release of refrigerants into the environment. According to EPA guidelines, technicians must not charge a system that has a known leak, as this would exacerbate ozone depletion and global warming issues associated with refrigerants.

In contrast, the other practices mentioned are all compliant with EPA regulations. Recovery of refrigerants is essential before servicing any equipment, ensuring that harmful substances do not escape into the atmosphere. Using certified equipment is a requirement, as only approved devices can properly handle the refrigerants without causing leakage. Maintaining proper records is also mandated by the EPA to track refrigerant usage and ensure accountability in handling that contributes to environmental protection. Together, these practices are pivotal in promoting sustainability and minimizing harm to the environment in the context of HVAC and refrigeration work.