To indicate the beginning of a Contract Pricing Proposal Transaction Set and transmit identifying numbers and dates
| Position | Element | Name | Type | Min/Max | Repeat | |
|---|---|---|---|---|---|---|
| 1 | 353 | Transaction Set Purpose Code | Mandatory | ID | 2/2 | 1 |
| 2 | 128 | Reference Identification Qualifier | Mandatory | ID | 2/3 | 1 |
| 3 | 127 | Reference Identification | Mandatory | Alphanumeric | 1/50 | 1 |
| 4 | 373 | Date | Opt | Date | 8/8 | 1 |
| 5 | 1308 | Contract Action Code | Opt | ID | 2/2 | 1 |
| 6 | 1166 | Contract Type Code | Opt | ID | 2/2 | 1 |
| 7 | 373 | Date | Opt | Date | 8/8 | 1 |
| 8 | 337 | Time | Opt | Time | 4/8 | 1 |
| 9 | 327 | Change Order Sequence Number | Opt | Alphanumeric | 1/8 | 1 |
| 10 | 127 | Reference Identification | Opt | Alphanumeric | 1/50 | 1 |
| 11 | 127 | Reference Identification | Opt | Alphanumeric | 1/50 | 1 |
| 12 | 352 | Description | Opt | Alphanumeric | 1/80 | 1 |
| 13 | 352 | Description | Opt | Alphanumeric | 1/80 | 1 |