Buried in the rules:

During the Voting Periods listed in the Application Entry Table above in Section 2, individuals who have registered on the Website to vote for the Applications they think should receive Grants ("Voters") will be allowed up to ten (10) votes (each a "Vote") per Voter per day during each Voting Period. Each Participant in the Grant Program will also be allowed up to ten (10) Votes each day of each Voting Period.

Just FYI. That means come again an vote another day, too, to be effective.

~ Becky in Long Beach