This object denotes the state of policy preloading in the PCC.
'preloadNotInitiated' indicates that policy preloading has not
been initiated.
'preloadInProgress' indicates that policy preloading is in
progress.
'preloadFailed' indicates that policy preloading has failed.
'preloadTimeout' indicates that timeout has occured.
'preloadComplete' indicates that policy preloading is
complete.