| Variable | Description | Type | Begin Column | End Column |
|---|---|---|---|---|
| ASCT | Area Source Category Code | A15 | 1 | 15 |
| ACTCODE | "Unused in EMS-95" | I10 | 16 | 25 |
| PROCCODE | "Unused in EMS-95" | I10 | 26 | 35 |
| CNTLCODE | "Unused in EMS-95" | I10 | 36 | 45 |
| OIC | Old Industrial Code | A10 | 46 | 55 |
| HOURS | Code Value for Hourly Operation | I2 | 56 | 57 |
| DAYS | Code Value for Daily Operation | I2 | 58 | 59 |
| PROFILE | Hydrocarbon Profile Number | A5 | 60 | 64 |