README for CSV file of assessment procedures from NIST SP 800-171A, Assessing Security Requirements for Controlled Unclassified Information Updated March 31, 2022 The assessment procedures in SP 800-171A are provided in multiple data formats. The PDF of SP 800-171A is the authoritative source of the assessment procedures for the enhanced security requirements. The CSV and XLSX include the same data as the PDF version with one exception: in the CSV and XLSX file, a column titled "sort-as" was added to allow users using a spreadsheet program to SORT the assessment procedures in ascending (alphabetical) order. The values in this column indicate the relevant SP 800-171A assessment procedure, but are not used in any other publication or version of the SP 800-171A assessment procedures. The sort-as column was added to ensure customers are able to sort the security requirements as they appear in the publication. Due to the structure of the NIST SP 800-171A assessment procedures and the way that spreadsheet programs sort strings (ASCII sorting order), sorting by identifier will not result in the security requirements appearing in the correct order. If there are any discrepancies noted in the content between the CSV, XLSX and the SP 800-171A PDF, please contact sec-cert@nist.gov and refer to the PDF as the normative source.