SEER Data Submission Requirements

November 2026 Data Submissions

• Data Submission Requirements and Guidelines (PDF, 286 KB)
• Attachment A (DOCX, 30 KB)
• SEER Transmission File
  • SEER Required Data Items (PDF, 830 KB)
• SEER Linkage Data File
  • Required Data Items (PDF, 1.0 MB)
• NCCR Transmission File
  • NCCR Core Registry Required Data Items (PDF, 467 KB)
• NCCR Linkage Data File
  • Coming Soon

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)