| A110*G | This airport has been surveyed by the national geodetic survey. |
| A110-1 | Deer on and in vicinity of airport. |
| A110-3 | No landing fee for aircraft less than 6500 lbs; for aircraft greater than 6500, landing fee waived with fuel purchases. |
| A12 | Fedex delivery: route 31 and airport road, williamstown, wv 26187 |
| A26 | Prior permission required 30 minimum for unscheduled air carrier operations with more than 30 passenger seats; please call airport manager (304) 464-5113. |
| A43-21 | Vasi runway 21 unusable beyond 5 degrees left and 9 degrees right of centerline. |
| A43-28 | PAPI unusable beyond 8 deg left and 8 deg right of runway centerline. |
| A81 | When air traffic control tower closed activate HIRL runways 03/21 and 10/28; taxiway lights; MALSR runway 03; REIL runway 10 - CTAF. |