  Bohmian mechanics is a realistic interpretation of quantum theory. It shares
the same ontology of classical mechanics: particles following continuous
trajectories in space through time. For this ontological continuity, it seems
to be a good candidate for recovering the classical limit of quantum theory.
Indeed, in a Bohmian framework, the issue of the classical limit reduces to
showing how classical trajectories can emerge from Bohmian ones, under specific
classicality assumptions. In this paper, we shall focus on a technical problem
that arises from the dynamics of a Bohmian system in bounded regions; and we
suggest that a possible solution is supplied by the action of environmental
decoherence. However, we shall show that, in order to implement decoherence in
a Bohmian framework, a stronger condition is required (disjointness of
supports) rather than the usual one (orthogonality of states).
