| 270 | 10e | D | Houston PIES | Public Information Emergency System (PIES; radio checks Wednesdays at 9:00 AM) | Emergency Ops |
| 45021 | afdd | T | Hou EOC Ops | Emergency Operations Center - Operations | Emergency Ops |
| 45022 | afde | T | Hou EOC Mnt | Emergency Operations Center - Maintenance | Public Works |
| 45023 | afdf | T | Hou OEM | Office of Emergency Management | Emergency Ops |
| 45211 | b09b | T | Hou EM Cmd 1 | Command 1 | Emergency Ops |
| 45212 | b09c | T | Hou EM Cmd 2 | Command 2 | Emergency Ops |
| 45213 | b09d | T | Hou EM HPD 1 | Houston Police Department 1 | Emergency Ops |
| 45214 | b09e | T | Hou EM HPD 2 | Houston Police Department 2 | Emergency Ops |
| 45215 | b09f | T | Hou EM HFD 1 | Houston Fire Department 1 | Emergency Ops |
| 45216 | b0a0 | T | Hou EM HFD 2 | Houston Fire Department 2 | Emergency Ops |
