| A110-1 | Airport nighttime noise abatement procedures are in effect from 2200 to 0700; contact airport manager on 773-686-2255. |
| A110-10 | Magnetic deviation possible immediately west of taxiway M7 and runway 22L approach on taxiway M. |
| A110-12 | Personnel and equipment working near various taxiways. |
| A110-16 | Periodic fire department training at north sector of the airport. |
| A110-2 | Birds on and in vicinity of airport. Pyrotechnics and bird cannons in use for bird control. |
| A110-20 | Prim RUN-UP location ground run up enclosure; secondary run up locations available upon req contact city operations 773-686-2255. |
| A110-21 | Line up and wait authorization in effect after dark at the following intersections; runway 32L at taxiway T-10 , runway 28 at taxiway zy and zv, runway 14L at taxiway U2 and taxiway wt, runway 32R at taxiway wt and runway 10 at taxiway zh. These runways will be used for departures only when exercising the provisions of this authorization. |
| A110-23 | All part 91 and unsked part 125, 133 and 135 charter operators contact signature flight support at 773-686-7000 regarding new security regulations prior to departure. |
| A110-24 | Runway H1, approach/ departure paths are east and west. |
| A110-25 | B747-400, B747-8, B777-300ER, B777-200LR (F) , A340-600 or A340-500 cannot pass on taxiways 'A' and 'B' insufficient wingtip clearance. |
| A110-27 | Be alert: the northeast/southwest portion of taxiway Y is not vsbl from the center air traffic control tower. Taxiway 'ZE' south of taxiway 'N' not visible from center tower due to blast fence. |
| A110-28 | General aviation ramp and FBO located at the north east ramp vicinity of runway 27L approach. |
| A110-32 | Air traffic control tower is auzd to conduct arrivals to runways 14L and 14R while conducting simultaneous opposite direction departures off of runway 09R and runway 28 during ifr weather conds. Air traffic control tower is auzd to conduct simultaneous converging inst approaches to runway 14R and runway 22R while conducting simultaneous opposite direction departures off of runway 09R and 28 during ifr weather conds. |
| A110-36 | Air traffic control tower is auzd to conduct simultaneous opposite direction departures on runway 09R and runway 28 during instrument flight rules (ifr) weather conds. |
| A110-37 | ASDE-X surveillance system in use: pilots should operate transponders with mode C on all taxiways and runways. |
| A110-38 | Runway 9L/27R triple dual tandem 690,000 lbs; dual tandum west/dual wheel (2D/D1) 633,000 lbs. |
| A110-39 | Yankee echo gate is manned 24 hours A day. Yankee tango gate is manned 24 hours A day. |
| A110-40 | Runway 32L closed to arrivals. |
| A110-41 | Air traffic control is auzd to conduct simultaneous departures from runways 14R/14L, 32L/32R, 4L/4R, 22R/22L, 9R with 9L or 10, and 27L with 28 or 27R with course divergence beginning no later than 4 miles from runway end. |
| A110-42 | Be alert: taxiway K-1 outbound or eastbound only, taxiway K-2 inbound or westbound only and taxiway S5 northbound only exiting runway, taxiway tt northbound only between runway 14L-32R and taxiway mm. |
| A110-6 | Aircraft with wingspan greater than 214 ft rqr 48 hours prior permission required - please call 773-686-2255. |
| A110-7 | See land and hold short operations section. |
| A110-8 | During periods of cold weather; the app end of runway 32R may not be visible from the air traffic control tower due to steam plume from airport heating plant. |
| A110-9 | Be alert: of duplicate ALPHA-NUMERIC taxiway designators and terminal gate designations involving the letters G, H, K L and M. |
| A30-04R/22L | Runway 04R/22L arresting gear/system: engineered materials system (EMAS) 546 ft in length by 170 ft in width located at the end of runway 04R. Arresting gear/system: engineered materials system (EMAS) 303 ft in length by 170 ft in width located at the end of runway 22L. |
| A30-14R/32L | Possible low level turbulence on approach end runway 14R. |
| A43-22R | Vgsi and ils glidepath not coincident. |
| A5 | And du page co. |
| A57-14L | 50:1 from displaced threshold. |
| A81-BCN | SS-SR. Out of service indefinitely. |
