This is the set of resources that conform to either of the profiles Characteristics of Home Environment (http://hl7.org/cda/us/ccda/StructureDefinition/CharacteristicsofHomeEnvironment) and Characteristics of Home Environment (http://hl7.org/cda/us/ccda/StructureDefinition/CharacteristicsofHomeEnvironment). E.g. what you have to deal with if you get resources conforming to one of them