The attached CTC Data File Upload document describes the requirements for uploading data to the CTC via the NRDR data upload interface.

The CTC Data File Specifications tab defines the file requirements, including delimiters and filename format.

The CTC Data Elements tab describes each data element for CTC data submission, including valid values and data formats. The layout includes fields for all fields present on the CTC Case, Exam, and Polyp forms.

Note: Version 1.2 can be used beginning on November 30, 2020. Versions 1.0 and 1.1 will not be accepted on or after this date.


  • CTC Data Upload File v1.0: September 4, 2018
  • CTC Data Upload File v1.1: April 15, 2020 - includes COVID fields
  • CTC Data Upload File v1.2: October 29, 2020