To provide basic trace parameters
| Position | Element | Name | Type | Min/Max | Repeat | |
|---|---|---|---|---|---|---|
| 1 | 301 | Car Type Code | Opt | ID | 1/4 | 1 |
| 2 | 322 | Load/Empty Status Code | Opt | ID | 1/1 | 1 |
| 3 | 140 | Standard Carrier Alpha Code | Opt | ID | 2/4 | 1 |
| 4 | 154 | Standard Point Location Code | Opt | ID | 6/9 | 1 |
| 5 | 154 | Standard Point Location Code | Opt | ID | 6/9 | 1 |
| 6 | 22 | Commodity Code | Opt | Alphanumeric | 1/30 | 1 |
| 7 | 140 | Standard Carrier Alpha Code | Rel | ID | 2/4 | 1 |
| 8 | 140 | Standard Carrier Alpha Code | Rel | ID | 2/4 | 1 |
| 9 | 154 | Standard Point Location Code | Opt | ID | 6/9 | 1 |
| 10 | 140 | Standard Carrier Alpha Code | Opt | ID | 2/4 | 1 |
| 11 | 1494 | Transportation Condition Code | Opt | ID | 1/1 | 1 |
| 12 | 1490 | Association of American Railroads Car Grade Code | Opt | ID | 1/1 | 1 |
| 13 | 177 | Intermodal Service Code | Opt | ID | 1/2 | 1 |