For MASH 2016 and later Systems
| Class | Function | Type | Number | Options |
|---|---|---|---|---|
| S – System | C – Crash Cushion | G – Gating / Non-Redirective | 01 – 99 | a – z |
| N – Non-Gating / Redirective | ||||
| R – Redirective / Gating |
For NCHRP Report 350 Systems
| Class | Function | Type | Number | Options |
|---|---|---|---|---|
| S – System | C – Crash Cushion | I – Independent | 01 – 99 | a – z |
| T – Thrie-Beam |