SEER Data Submission Requirements

February 2026 Data Submissions

• Data Submission Requirements and Guidelines (PDF, 244 KB)
• Attachment A (DOCX, 29 KB)
• SEER Transmission File
  • SEER Required Data Items (PDF, 1.5 MB)
  • SEER Submission XML Dictionary (XML, 107 KB)
• Linkage Data File
  • Required Data Items (PDF, 174 KB)

November 2025 Data Submissions

• Data Submission Requirements and Guidelines (PDF, 251 KB)
• Attachment A (DOCX, 37 KB)
• SEER Transmission File
  • SEER Required Data Items (PDF, 606 KB)
• SEER Linkage Data File
  • Required Data Items (PDF, 194 KB)
• NCCR Transmission File
  • NCCR Core Registry Required Data Items (PDF, 542 KB)
• NCCR Linkage Data File
  • Required Data Items (PDF, 84 KB)

February 2025 Data Submissions

• Data Submission Requirements and Guidelines (PDF, 217 KB)
• Attachment A (DOCX, 28 KB)
• SEER Transmission File
  • SEER Required Data Items (PDF, 519 KB)
  • SEER Submission XML Dictionary (XML, 28 KB)
• Linkage Data File
  • Required Data Items (PDF, 160 KB)