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Terrorism and Preparedness Data Resource Center

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Once I've deposited my data, I do not want changes made to my data collection without my permission. Will you contact me prior to altering the files?

For most data collections, the archive distributes data and documentation in essentially the same form in which they were received. When appropriate, documentation is converted to Portable Document Format (PDF), data files are converted to non-platform-specific formats, and variables are recoded to ensure respondents' anonymity. Our staff will generally contact you regarding any suggested changes after an initial assessment of your data collection. Regardless of changes made, the archive keeps several copies of all files in the form in which they were submitted.