Archived Challenges
Archived challenges are no longer accepting submissions and are included for historical purposes only.
2011 Presidential Green Chemistry Challenge Awards
Environmental Protection AgencyClosed On: 01/01/2011 04:00 AM
Career Videos for America's Job Seekers
Department of LaborClosed On: 01/01/2011 04:59 AM
Green Flight Challenge
National Aeronautics and Space AdministrationClosed On: 01/01/2011 04:59 AM
Poster Contest on Carbon Monoxide Safety
Consumer Product Safety CommissionClosed On: 01/01/2011 09:59 AM
Hydrogen Student Design Contest
Department of Energy - Energy ProgramsClosed On: 01/04/2011 04:00 AM
Challenge to Innovate (C2i)
Department of EducationClosed On: 01/15/2011 04:00 AM
HBCU Mental Health Promotion Campaign 2011
Department of Health and Human Services - Substance Abuse and Mental Health Services AdministrationClosed On: 01/15/2011 04:59 AM
Augmented Reality Photo Contest
International Assistance Programs - Department of State - OtherClosed On: 01/22/2011 09:00 AM
Preparing Our Communities Before a Disaster Strikes
Department of Homeland Security - Federal Emergency Management AgencyClosed On: 01/30/2011 04:59 AM
Next Generation Design Competition
General Services AdministrationClosed On: 02/01/2011 09:00 AM
Sustainable Urban Housing - Collaborating for Liveable and Inclusive Cities
Department of Housing and Urban DevelopmentClosed On: 02/02/2011 11:00 PM
DTIC Student Paper Competition
Department of DefenseClosed On: 02/08/2011 04:59 AM
Balloonsat High Altitude Flight Student Competition
National Aeronautics and Space AdministrationClosed On: 02/12/2011 04:59 AM
Calendar cover contest - womenshealth.gov
Department of Health and Human ServicesClosed On: 03/01/2011 04:00 AM
Healthy Living Innovation Awards
Department of Health and Human ServicesClosed On: 03/01/2011 11:00 PM
Experimental Crowd-derived Combat-support Vehicle (XC2V) Design Challenge
Department of DefenseClosed On: 03/04/2011 04:59 AM
Race to the Top High School Commencement Challenge
Department of EducationClosed On: 03/11/2011 11:00 PM
Veterans Health Wireless Innovation Challenge
Department of Veterans AffairsClosed On: 03/16/2011 03:00 AM
NLM & You: The Video Contest
Department of Health and Human Services - National Institutes of HealthClosed On: 04/01/2011 03:59 AM
Whats your energy innovation? - a video challenge for undergraduate college students
National Science FoundationClosed On: 04/05/2011 03:00 AM
Absentee Voting Slogan Contest
Department of DefenseClosed On: 04/09/2011 03:59 AM
Absentee Voting Poster Contest
Department of DefenseClosed On: 04/11/2011 03:59 AM
FAA Design Competition for Universities
Department of TransportationClosed On: 04/16/2011 03:00 AM
Prevention of Substance Abuse and Mental Illness Video PSA Contest
Department of Health and Human Services - Substance Abuse and Mental Health Services AdministrationClosed On: 04/23/2011 03:59 AM
Service Impact Award
International Assistance Programs - Department of State - OtherClosed On: 04/26/2011 03:59 AM
Go Viral to Improve Health: IOM-NAE Health Data Collegiate Challenge
Department of Health and Human ServicesClosed On: 04/28/2011 03:00 AM
2011 Cyber Quests Competition
Department of DefenseClosed On: 05/02/2011 03:00 AM
Connected Vehicle Technology Challenge
Department of TransportationClosed On: 05/02/2011 03:59 AM
Design and simulation of an accurate shooter-locator
Department of DefenseClosed On: 05/03/2011 03:00 AM
Humanitarian Air Drop
Department of DefenseClosed On: 05/03/2011 03:00 AM
Remote Human Demographic Characterization
Department of DefenseClosed On: 05/03/2011 03:00 AM
Vehicle Stopper
Department of DefenseClosed On: 05/03/2011 03:00 AM
Connecting Generations Video Challenge
Department of Health and Human ServicesClosed On: 05/10/2011 03:59 AM
Lifted by the Cloud: Visions of Cloud-Enhanced Accessibility
Department of Veterans AffairsClosed On: 05/16/2011 07:59 AM
CDC Flu App Challenge
Department of Health and Human Services - Centers for Disease Control and PreventionClosed On: 05/28/2011 03:59 AM
SMART Apps for Health
Department of Health and Human ServicesClosed On: 06/01/2011 03:59 AM
FCC Open Internet Apps Challenge
International Assistance Programs - Department of State - OtherClosed On: 06/02/2011 07:59 AM
It's My Environment Video Project
Environmental Protection AgencyClosed On: 06/07/2011 03:59 AM
Rachel Carson "Sense of Wonder" Contest 2011
Environmental Protection AgencyClosed On: 06/11/2011 07:00 AM
Sponsoring Scholars in Science
Department of DefenseClosed On: 06/17/2011 03:59 AM
Detecting Impact Craters Challenge
National Aeronautics and Space AdministrationClosed On: 06/30/2011 03:00 AM
Intelligent Transportation Systems Video Challenge
Department of TransportationClosed On: 07/01/2011 03:00 AM
National Natural Landmarks Program Photo Contest
Department of the Interior - National Park ServiceClosed On: 07/01/2011 07:00 AM
Healthy Swimming Video Contest
Department of Health and Human Services - Centers for Disease Control and PreventionClosed On: 07/05/2011 03:59 AM
Picture It! Safe Workplaces for Everyone
Department of LaborClosed On: 08/13/2011 03:00 AM
Strong Tether Challenge
National Aeronautics and Space AdministrationClosed On: 08/13/2011 03:00 AM
HADR-Challenge
Department of DefenseClosed On: 08/15/2011 11:59 PM
Medicare Claims Data Developer Challenge
Department of Health and Human Services - Centers for Medicare and Medicaid ServicesClosed On: 08/16/2011 03:00 AM
Mapping Dark Matter
National Aeronautics and Space AdministrationClosed On: 08/19/2011 03:59 AM
Food, Fun, and Sun - Story and Photo Challenge!
Department of AgricultureClosed On: 08/21/2011 03:00 AM
Using Public Data for Cancer Prevention and Control: From Innovation to Impact
Department of Health and Human ServicesClosed On: 08/27/2011 03:00 AM
2011 ENERGY STAR National Building Competition: Battle of the Buildings
Environmental Protection AgencyClosed On: 08/31/2011 11:59 PM
NLM Show Off Your Apps - Innovative Uses of NLM Information
Department of Health and Human Services - National Institutes of HealthClosed On: 09/01/2011 03:59 AM
Green Power Community Challenge
Environmental Protection AgencyClosed On: 09/01/2011 11:00 PM
GREAT10 - The GRavitational lEnsing Accuracy Test
National Aeronautics and Space AdministrationClosed On: 09/03/2011 03:59 AM
The 2011 Zero Robotics Challenge
National Aeronautics and Space AdministrationClosed On: 09/06/2011 03:00 AM
September 11 National Day of Service and Remembrance 10th Anniversary Challenge
International Assistance Programs - Department of State - OtherClosed On: 09/14/2011 09:00 PM
DOL informACTION App Challenge
Department of LaborClosed On: 09/15/2011 03:00 AM
Occupational Employment Statistics Challenge
Department of LaborClosed On: 09/15/2011 03:00 AM
Apps for the Environment
Environmental Protection AgencyClosed On: 09/17/2011 12:00 AM
Solar Decathlon
Department of Energy - Energy ProgramsClosed On: 09/24/2011 03:00 AM
Creating a Collaborative Nano-Bio Manufacturing Institute
Department of DefenseClosed On: 10/01/2011 03:00 AM
Apps for Communities
International Assistance Programs - Department of State - OtherClosed On: 10/04/2011 03:00 AM
MusiCares and GRAMMY Foundation - Teen Substance Abuse Awareness through Music Contest
Department of Health and Human Services - National Institutes of HealthClosed On: 10/11/2011 03:00 AM
Are You Prepared? Video Contest
Department of Health and Human Services - Centers for Disease Control and PreventionClosed On: 10/12/2011 03:59 AM
Apps Against Abuse
Department of Health and Human ServicesClosed On: 10/18/2011 03:59 AM
Blue Button for All Americans
Department of Veterans AffairsClosed On: 10/19/2011 03:00 AM
Data Visualization Student Challenge
Department of TransportationClosed On: 11/01/2011 03:00 AM
Joining Forces Community Challenge
International Assistance Programs - Department of State - OtherClosed On: 11/01/2011 03:00 AM
Help Answer the Public's Questions Video Contest
General Services AdministrationClosed On: 11/02/2011 03:00 AM
The ASPR Lifeline Facebook Application Challenge
Department of Health and Human ServicesClosed On: 11/05/2011 03:00 AM
Special Operations Transport
Department of DefenseClosed On: 11/15/2011 04:59 AM
MyPlate Fruits and Veggies Video Challenge
Department of AgricultureClosed On: 11/15/2011 05:00 PM
Ensuring Safe Transitions from Hospital to Home
Department of Health and Human ServicesClosed On: 11/17/2011 05:00 AM
Healthymagination Challenge - Assembling Tools to Fight Cancer
Department of Health and Human ServicesClosed On: 11/20/2011 05:00 AM
Apps for Entrepreneurs
Small Business AdministrationClosed On: 11/21/2011 04:00 AM
Do More Than Donate. FWD the Facts About the Famine.
International Assistance Programs - Agency for International DevelopmentClosed On: 12/02/2011 05:00 PM
DARPA's Shredder Challenge
Department of DefenseClosed On: 12/05/2011 04:00 AM
$50,000 USPTO Algorithm Challenge
Department of Commerce - U.S. Patent and Trademark OfficeClosed On: 12/06/2011 04:00 AM
White House Campus Champions of Change
International Assistance Programs - Department of State - OtherClosed On: 12/10/2011 05:00 AM
Ending Childhood Hunger Video Contest
Department of AgricultureClosed On: 12/15/2011 11:00 PM
NIH Lessons About Bioscience (LAB) Challenge
Department of Health and Human Services - National Institutes of HealthClosed On: 12/15/2011 12:00 PM
Fast Rope Glove Device
Department of DefenseClosed On: 12/16/2011 05:00 AM
United States Surgeon Generals Healthy Apps Challenge
Department of Health and Human ServicesClosed On: 12/31/2011 05:00 AM
Americas Home Energy Education Challenge
Department of Energy - Energy ProgramsClosed On: 12/31/2011 11:00 PM