http://av-info.faa.gov/terps/IPH/CH%2005a.pdf
"The name of an instrument approach, as published, is
used to identify the approach, even if a component of
the approach aid is inoperative or unreliable. The controller
will use the name of the approach as published,
but must advise the aircraft at the time an approach
clearance is issued that the inoperative or unreliable
approach aid component is unusable. (Example:
“Cleared ILS RWY 4, glide slope unusable.”)"