rofessional and Practical Guidance an Substances that Deplete the Ozone Layer (CIBSE, 2000). The Refrigerant Manual: Managing the PhaseOut of CFCs (BOMA International, r993). 150 LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 2009 EDITION EFTA00281689 13. Definitions Chlorofluorocarbons (CFC