T1 - Chief
T1I1 - Commander, area 1
T1I2 - Commander, area 2
T1L - Lieutenant
T1S - Sergeant
T2 - Data Systems Bureau
T3 - Communications and Fleet Management Bureau
Mobile Command Unit call signs
MCU-0 through MCU-13
MCU-A through MCU-D and MCU-G
T4 - Records and Identification Bureau
T5 - Scientific Services Bureau