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University of Colorado Denver College of Liberal Arts and Sciences

Colorado History Day

National History Day in Colorado

General Rules for All Categories

These are the rules from the National History Day Rule Book, with some additions that relate to the Colorado contests. Download a copy of the NHD Rule Book​

Click here​ to download the summary of changes from the old rule book.


Rule 1: Annual Theme
Rule 2: Contest Participation
Rule 3: Individual or Group Entries
Rule 4: Development Requirements
Rule 5: Construction of Entry
Rule 6: Contest Day Set-up
Rule 7: Supplying Equipment
Rule 8: Interview with Judges
Rule 9: Costumes
Rule 10: Prohibited Materials
Rule 11: Title
Rule 12: Written Material
Rule 13: Title Page
Rule 14: Process Paper
Rule 15: Annotated Bibliography
Rule 16: The Separation of Primary and Secondary Sources
Rule 17: Style Guides
Rule 18: Plagiarism