  The dramatic changes seen in the X-ray spectral and timing properties of
accreting black hole candidates (BHCs) provide important clues about the
accretion and jet formation processes that occur in these systems. Dividing the
different source behaviors into spectral states provides a framework for
studying BHCs. To date, there have been three main classification schemes with
Luminosity-based, Component-based, or Transition-based criteria. The canonical,
Luminosity-based criteria and physical models that are based on this concept do
not provide clear explanations for several phenomena, including hysteresis of
spectral states and the presence of jets. I discuss the re-definitions of
states, focusing on an application of the Component-based states to more than
400 RXTE observations of the recurrent BHC 4U 1630-47. We compare the X-ray
properties for the recent 2002-2004 outburst to those of an earlier (1998)
outburst, during which radio jets were observed. The results suggest a
connection between hysteresis of states and major jet ejections, and it is
possible that both of these are related to the evolution of the inner radius of
the optically thick accretion disk.
