  Causal differencing has shown to be one of the promising and successful
approaches towards excising curvature singularities from numerical simulations
of black hole spacetimes. So far it has only been actively implemented in the
ADM and Einstein-Bianchi 3+1 formulations of the Einstein equations. Recently,
an approach closely related to the ADM one, commonly referred to as as
``conformal ADM'' (CADM) has shown excellent results when modeling waves on
flat spacetimes and black hole spacetimes where singularity avoiding slices are
used to deal with the singularity. In these cases, the use of CADM has yielded
longer evolutions and better outer boundary dependence than those obtained with
the ADM one. If this success translates to the case where excision is
implemented, then the CADM formulation will likely be a prime candidate for
modeling generic black hole spacetimes. In the present work we investigate the
applicability of causal differencing to CADM, presenting the equations in a
convenient way for such a goal and compare its application with the ADM
approach in 1D.
