Figure 14-25.  Holding position sign and marking for instrument  landing system (ILS) critical area boundary.  Holding Position Markings for Taxiway/Taxiway  Intersections  Marking and Lighting of Permanently Closed  Runways and Taxiways  Figure 14-24.  Instrument landing system (ILS) holding position sign  and marking on Taxiway Golf.  Figure 14-23.  Runway destination sign with different taxi routes.  Figure 14-22.  Destination sign to the fixed-base operator (FBO).  Holding position markings for taxiway/taxiway intersections  consist of a single dashed yellow line extending across the  width of the taxiway.  [Figure 14-26]  They are painted on  taxiways where ATC normally holds aircraft short of a  taxiway intersection. When instructed by ATC “hold short  of Taxiway X,” you should stop so that no part of your  aircraft extends beyond the holding position marking. When  the marking is not present, you should stop your aircraft at  a point that provides adequate clearance from an aircraft on  the intersecting taxiway.  For runways and taxiways that are permanently closed, the  lighting circuits are disconnected. The runway threshold,  runway designation, and touchdown markings are obliterated  and yellow “Xs” are placed at each end of the runway and  at 1,000-foot intervals.  14-14  ILS Critical Area boundary  ILS  Hold only when  specifically instructed by ATC  19  The yellow surface painted “ladder”  marking and red ILS  sign are located on taxiways where  the taxiways intersect  the ILS critical area. 