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 |