To provide basic information about the electronic format of the interchange data
| Position | Element | Name | Type | Min/Max | Repeat | |
|---|---|---|---|---|---|---|
| 1 | 786 | Security Level Code | Mandatory | ID | 2/2 | AtMax 1 |
| 2 | 933 | Free-form Message Text | Opt | Alphanumeric | 1/264 | AtMax 1 |
| 3 | 797 | Security Technique Code | Opt | ID | 2/2 | AtMax 1 |
| 4 | 799 | Version Identifier | Rel | Alphanumeric | 1/30 | AtMax 1 |
| 5 | 802 | Program Identifier | Opt | Alphanumeric | 1/30 | AtMax 1 |
| 6 | 799 | Version Identifier | Rel | Alphanumeric | 1/30 | AtMax 1 |
| 7 | 801 | Interchange Format | Opt | Alphanumeric | 1/30 | AtMax 1 |
| 8 | 799 | Version Identifier | Rel | Alphanumeric | 1/30 | AtMax 1 |
| 9 | 800 | Compression Technique | Opt | Alphanumeric | 1/30 | AtMax 1 |
| 10 | 789 | Drawing Sheet Size Code | Opt | Alphanumeric | 2/2 | AtMax 1 |
| 11 | 803 | File Name | Opt | Alphanumeric | 1/64 | AtMax 1 |
| 12 | 804 | Block Type | Opt | Alphanumeric | 1/4 | AtMax 1 |
| 13 | 787 | Record Length | Opt | Number | 1/15 | AtMax 1 |
| 14 | 788 | Block Length | Opt | Number | 1/5 | AtMax 1 |
| 15 | 799 | Version Identifier | Rel | Alphanumeric | 1/30 | AtMax 1 |
| 16 | 1570 | Filter ID Code | Rel | ID | 3/3 | AtMax 1 |