If the judge decides to hear the lawsuit, No Excuse Voting could be suspended while the case is heard.
The N.C. General Assembly approved No Excuse Voting, which allows citizens to cast ballots for three weeks prior to Election Day, in 1998 as a tool to increase voter turnout.
Education leaders have used the program to encourage college students to vote for the $3.l billion higher education bond referendum on this year's ballot.
The suit - brought Oct. 13 against the State Board of Elections by Greensboro lawyer Marshall Hurley on behalf of two Guilford County voters - alleges that early voting has the potential to decide elections before Election Day, violating federal law.
"(No Excuse Voting) sets up a whole series of election days," Hurley said. "It lets all the bars down, and it becomes `open-season' voting."
In a hearing Friday, Hurley asked federal District Judge Terrance Boyle to stop satellite voting until the suit can be heard. Boyle gave Hurley until today to gather more information before Boyle makes a ruling.
No Excuse Voting, which took effect Oct. 16, allows the state's voters to cast ballots at satellite polling sites in the county where they are registered until Nov. 3. The ballots are counted as absentee ballots.
But Hurley said federal law requires that elections for Congress and the presidency occur on the Tuesday following the first Monday in November.
One of the suit's plaintiffs, Marcus Kindley of Gibsonville, said it was his duty as a citizen to question the voting policy.