| 2000 | 7d0 | D | ITHA Ops 2000 | Operations | Public Works |
| 2001 | 7d1 | D | ITHA Ops 2001 | Operations | Public Works |
| 2002 | 7d2 | D | ITHA M NorthHELP | North Maintenance / HELP Trucks [Ch 2] | Public Works |
| 2003 | 7d3 | DE | ITHA Collections | Collections | Public Works |
| 2004 | 7d4 | D | ITHA Maint Alt N | Maintenance Alternate - North ("A Alternate", "A Ops") | Public Works |
| 2006 | 7d6 | D | ITHA M Roadwide1 | Maintenance - Roadwide 1 | Public Works |
| 2007 | 7d7 | D | ITHA M Roadwide2 | Maintenance - Roadwide 2 / HELP Trucks | Public Works |
| 2008 | 7d8 | D | ITHA M Roadwide3 | Maintenance - Roadwide 3 | Public Works |
| 2009 | 7d9 | D | ITHA M CarToCar | Maintenance - Car-to-Car | Public Works |
| 2010 | 7da | D | ITHA M Disaster | Maintenance - Disaster | Public Works |
| 2011 | 7db | D | ITHA Maint 2011 | Maintenance | Public Works |
| 2012 | 7dc | D | ITHA Maint 2012 | Maintenance | Public Works |
| 2013 | 7dd | D | ITHA M1 Alsip | Maintenance Garage M-1 (Alsip) | Public Works |
| 2014 | 7de | D | ITHA M2 Hillside | Maintenance Garage M-2 (Hillside) | Public Works |
| 2015 | 7df | D | ITHA M3 PrkRidge | Maintenance Garage M-3 (Park Ridge) | Public Works |
| 2016 | 7e0 | D | ITHA M4 Gurnee | Maintenance Garage M-4 (Gurnee) | Public Works |
| 2017 | 7e1 | D | ITHA M5 ArlHghts | Maintenance Garage M-5 (Arlington Heights) | Public Works |
| 2018 | 7e2 | D | ITHA M6 Mar/Hamp | Maintenance Garage M-6 (Marengo-Hampshire) | Public Works |
| 2019 | 7e3 | D | ITHA M7 Rockford | Maintenance Garage M-7 (Rockford) | Public Works |
| 2020 | 7e4 | D | ITHA M8 Aurora | Maintenance Garage M-8 (Aurora) | Public Works |
| 2021 | 7e5 | D | ITHA M11 DeKalb | Maintenance Garage M-11 (DeKalb) | Public Works |
| 2022 | 7e6 | D | ITHA M12 Dixon | Maintenance Garage M-12 (Dixon) | Public Works |
| 2023 | 7e7 | D | ITHA M14 DwnrGrv | Maintenance Garage M-14 (Downers Grove) | Public Works |
| 2024 | 7e8 | D | ITHA M16 Bensnvl | Maintenance Garage M-16 (Bensenville) | Public Works |
| 2025 | 7e9 | D | ITHA Ops 2025 | Operations | Public Works |
| 2041 | 7f9 | D | IREACH Lisle | I-REACH Patch - Lisle | Interop |
| 2042 | 7fa | D | IREACH Rochelle | I-REACH Patch - Rochelle | Interop |
| 2043 | 7fb | D | IREACH Plaza 36 | I-REACH Patch - Plaza 36 | Interop |
| 2044 | 7fc | D | IREACH Maint M7 | I-REACH Patch - Maintenance M7 | Interop |
| 2045 | 7fd | D | IREACH Plaza 10 | I-REACH Patch - Plaza 10 | Interop |
| 2046 | 7fe | D | IREACH Plaza 23 | I-REACH Patch - Plaza 23 | Interop |
| 2047 | 7ff | D | ITHA Ops 2047 | Operations | Public Works |
| 2048 | 800 | D | ITHA Ops 2048 | Operations | Public Works |
| 2049 | 801 | D | ITHA Ops 2049 | Operations | Public Works |
| 2135 | 857 | D | ITHA HQ Maint | Headquarters Maintenance Operations | Public Works |
| 2136 | 858 | D | ITHA Ops 2136 | Operations | Public Works |
| 2395 | 95b | D | ITHA Maint Ann | Maintenance Announcement | Public Works |
| 2398 | 95e | D | ITHA Patrol Ann | Patrol Announcement | Public Works |
