The following rules apply to all new identifications as well as pedigree conflicts:

1. Sex code is identical to existing sex code
2. Country code is identical to existing country code
3. 12-byte identification code is identical to existing 12-byte identification code
4. Breed code is DIFFERENT from existing breed code

Eartags:

• Breed code HO/WW/MR combinations:
  1. Animal ID is changed to existing breed code; 1Bi change error code
  2. Sire ID is changed to existing breed code; 2Bi change error code
  3. Dam ID is changed to existing breed code; 3Bi change error code
  4. Xref ID is changed to existing breed code; 4Bi change error code
  
  
• Breed code XX with any other breed code combinations:
  1. Animal ID is changed to existing breed code; 1Bi change error code
  2. Sire ID is changed to existing breed code; 2Bi change error code
  3. Dam ID is changed to existing breed code; 3Bi change error code
  4. Xref ID is changed to existing breed code; 4Bi change error code
  
  
• All other breed code combinations:
  1. Animal ID is rejected; 1Fe reject error code
  2. Sire ID is ignored; 2Ag change error code
  3. Dam ID is ignored; 3Ag change error code
  4. Xref ID is ignored; 4Ag change error code

Old registered IDs:

• Conflict with existing pedigree; input is verified:
  1. Sire ID replaces existing breed code
  2. Dam ID replaces existing breed code
  
  
• Conflict with existing pedigree; input is not verified:
  1. Sire ID is changed to existing breed code; 2Ge change error code
  2. Dam ID is changed to existing breed code; 3Ge change error code

New IDs from USA/CAN/DEU/NLD ¹:

• Breed code HO/WW/MR combinations:
  1. Successful cross reference of animals, animal ID is accepted; 1Cd notify error code
  2. Unsuccessful cross reference of animals, animal ID is rejected; 1Fh reject error code
  3. Sire ID is changed to existing breed code; 2Bi change error code
  4. Dam ID is changed to existing breed code; 3Bi change error code
  5. Successful cross reference of animals, xref ID is accepted; 4Cd notify error code
  6. Unsuccessful cross reference of animals, xref ID is rejected; 4Fh reject error code
  
  
• Breed code XX with any other breed code combinations:
  1. Animal ID is changed to existing breed code; 1Bi change error code
  2. Sire ID is changed to existing breed code; 2Bi change error code
  3. Dam ID is changed to existing breed code; 3Bi change error code
  4. Xref ID is changed to existing breed code; 4Bi change error code
  
  
• All other breed code combinations:
  1. Animal ID is rejected; 1Fi reject error code
  2. Sire ID is ignored; 2Ah change error code
  3. Dam ID is ignored; 3Ah change error code
  4. Xref ID is ignored; 4Ah change error code

New IDs from all other countries:

• Breed code HO/WW/MR combinations:
  1. Successful cross reference of animals, animal ID is accepted; 1Ce notify error code
  2. Sire ID is accepted as new animal
  3. Dam ID is accepted as new animal
  4. Successful cross reference of animals, xref ID is accepted; 4Ce notify error code
  
  
• Breed code XX with any other breed code combinations:
  1. Animal ID is accepted as new animal
  2. Sire ID is accepted as new animal
  3. Dam ID is accepted as new animal
  4. Xref ID is accepted as new animal
  
  
• All other breed code combinations:
  1. Animal ID is accepted as new animal
  2. Sire ID is accepted as new animal
  3. Dam ID is accepted as new animal
  4. Xref ID is accepted as new animal

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¹ Animal IDs from these countries are unique across sex and breed.