HVAC - EPA Certification Practice Exam

What is a key restriction regarding the sale of CFCs and HCFCs?

1. Available to the general public without restriction

2. Sold only to licensed technicians

3. Only companies can purchase in bulk

4. Requires a government permit for purchase

The correct answer is: Sold only to licensed technicians

The correct choice is that CFCs (Chlorofluorocarbons) and HCFCs (Hydrochlorofluorocarbons) are sold only to licensed technicians. This restriction is in place primarily due to the environmental impact these substances have. CFCs and HCFCs are known to contribute to ozone depletion, and their use is heavily regulated under environmental laws such as the Clean Air Act and international agreements like the Montreal Protocol. Requiring that only licensed technicians purchase these substances ensures that they are handled, transported, and disposed of correctly, minimizing the risk of accidental release into the atmosphere. Licensed technicians are trained in safe handling practices and are aware of the legal implications surrounding the use of these refrigerants. The other options do not align with the regulatory framework in place for these chemicals. For example, making them available to the general public would increase the risk of improper use and environmental harm, while bulk purchases being restricted to companies is an overly broad statement ignoring the necessary licensing requirement for the technicians handling the refrigerants. Additionally, requiring a government permit for purchase is not a standard practice for CFCs and HCFCs; instead, the licensing ensures comprehension of safety and regulatory compliance.