To get started, download and read the Rules and Guidelines document (PDF) . It contains detailed information on all aspects of Grand Challenges Explorations. You may need to download Adobe Reader to view PDF documents.

Please also read the Terms and Conditions, and Privacy Policy. Any information submitted by you or on your behalf with respect to the Grand Challenges Explorations Initiative (including your proposal, reports, and any related documentation and communications) will be subject to and handled in accordance with the provisions in these three documents.

Changes to the rules and guidelines will be posted on the Frequently Asked Questions page of this Web site. Please read the current FAQs before submitting any questions or concerns.

Topics are presented for each Grand Challenges Explorations round.

Topics for Round 4 will be announced September 2, 2009.

Read these detailed topic descriptions on the GCE Topics Overview page and determine which topic best suits your idea.

Please download the Application Form for specific instructions on the format and content of your application.

All proposals must be written in English.

You may create an account using our online Explorations Application Tool.  This tool will enable you to register for an Explorations topic as well as create, edit, or submit your proposal.  After you have created an account and registered for a topic, you can start the online application process. All applications must be submitted through this online system.

• You may create an account at any time

For Round 3 of Grand Challenges Explorations we anticipate completing the review process and making our decisions in October 2009. Please do not contact the Bill & Melinda Gates Foundation regarding your proposal; we will contact you once the review is complete.