 Conserved quantity accounts of causation are reductive accounts of causation that are explicitly designed to locate causation within the realm of physics avoiding the vagueness challenge. Most prominent here is the causal process account first proposed by Wesley Salmon (1984) and developed further in Phil Dowe’s conserved quantity account (Dowe 2000; see also Kistler 1999 [2006]). Proponents of conserved quantity accounts take their accounts to contribute to the metaphysical project of determining objective causal structures that serve as truth-makers of causal claims.