Field J1-8OptionalConsumer Information
Metro 2 Field J1-8: J1 Date of Birth
Date of birth of the associated consumer in the J1 segment, in MMDDYYYY format. Used with the SSN for identity matching.
Quick Reference
Field Number:J1-8
Position:78-85
Length:8 characters
Type:date
Record:J1 Segment
Required:No
Validation Rules
- Format MMDDYYYY, zero-filled when unused
- Must be a valid past date
Examples
1001197900000000Common Errors
- Future or invalid date
Tips & Best Practices
- Either SSN or DOB should be present to identify the J1 consumer
Related Fields
Other Consumer Information
Preview this field in your own Metro 2 file
Drop a .dat or CSV file into the free in-browser viewer to see how J1 Date of Birth is encoded in a real record. Nothing is uploaded — your file stays on your device.
Automate Field Validation
Metro2 software automatically validates all fields against Metro 2 specifications, catching errors before submission.