The system boundaries of the LCC naturally depend on the
study in question, but their definition should correspond closely with those of the LCA. It should, however, be noted that Conventional
LCCs may often exclude specific parts of the lifecycle,
thereby reflecting the specific goal of the Conventional LCC. For
example, determining a waste fee based on a Conventional LCC
should exclude source separation costs incurred by households
(because the goal is to determine costs downstream of the households).
However, Environmental and Societal LCCs must include all
of the phases of the system and thereby have system boundaries
identical to the LCA.