| A110*G | This airport has been surveyed by the national geodetic survey. |
| A110-3 | Arng: all traffic to arng ramp 1300-2130Z++WKDAY contact keystone operations, ot prior permission required C814-532-7714. Ramp pilot control light 143.3. |
| A110-4 | Ar: all F/west ramp use prior permission required contact ar 1300-2130Z++WKD C814-532-7600. F/west parking first 5 pads facing hgr. limited maintenance F/west. Ramp pilot control light taxiway and parking, 143.3. |
| A110-7 | Deer and birds on and in vicinity airport. |
| A26 | 48 hours prior permission required for unscheduled air carrier operations with more than 30 passenger seats; please call airport manager (814) 536-0002. |
| A35-05/23 | ST= 110 |
| A81 | When tower closed activate HIRL runway 15/33, MALSR runway 33, PAPI runway 33, taxiway lights taxiways A, B, and G, and main terminal apron - CTAF. MIRL runway 5/23 unavailable when tower closed. |
| A82 | Unicom frequency 122.950 available for ground svcs only. |
