LEED AP Building Design and Construction (BD+C) Practice Exam

What regulation requires reducing CFC-based refrigerant leakage to 5% or less annually?

1. EPA Clean Air Act, Title VI, Rule 608

2. ASHRAE 90.1 Standards

3. National Energy Policy Act

4. Green Building Act

The correct answer is: EPA Clean Air Act, Title VI, Rule 608

The requirement to reduce CFC-based refrigerant leakage to 5% or less annually is specifically outlined in Title VI of the Clean Air Act, which is managed by the Environmental Protection Agency (EPA). This title focuses on protecting the stratospheric ozone layer and sets regulations regarding substances that deplete it. Rule 608 within this framework establishes protocols for the handling and management of refrigerants, specifically targeting the reduction of leakage rates. By mandating a maximum leakage rate of 5% or less, this regulation aims to minimize the release of harmful chlorofluorocarbons (CFCs) into the atmosphere, which have been shown to contribute significantly to ozone depletion and have adverse environmental effects. This regulation plays an essential role in promoting sustainable practices in HVAC systems and ensuring that buildings are designed and maintained with a focus on reducing their environmental impact. The other options do not directly address the specific requirement related to CFC refrigerant leakage. ASHRAE 90.1 Standards focus on energy efficiency in buildings but do not include specific leakage rates for refrigerants. The National Energy Policy Act deals with broader energy policies and regulations without specific reference to refrigerant leakage. Lastly, the Green Building Act pertains to various aspects of sustainable construction but does