The five-member panel, led by a businessman who is a former ambassador to the US, was due to give its recommendations to Haiti's revamped Provisional Electoral Council yesterday.
The commission then is scheduled to hand its report to the interim president at a today afternoon ceremony on the grounds of the National Palace.
Government officials would not comment on when the report would be made public.
Commission president Pierre Francois Benoit has said a random sample of 25 per cent of the roughly 13,000 tally sheets from polling stations would be audited. In recent days, a team of police officers could be seen at a tabulation center examining thumbprints on ballot sheets.
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Robert Fatton, a Haitian-born politics professor at the University of Virginia and the author of "The Roots of Haitian Despotism," said doubts and suspicions about the commission are an indication that Haiti's electoral impasse might actually deepen.
"I think we are in for a bumpy ride," Fatton said in an email to The Associated Press.
In recent days, several foreign embassies have warned their citizens in Haiti that the release of the panel's report and a scheduled Tuesday announcement of a new election date could lead to civil unrest in coming days.
For residents of Haiti's capital, life goes on. Tire-burning roadblocks and other signs of political turbulence are familiar in Haiti.
The possibility of paralysing protests is a big concern to Adler Augustin, a 29-year-old who has a small business inflating car tires at the side of a busy road in Port-au-Prince.
"All my work is in the streets so I'm worried I won't be able to do any business," he said.
Interim President Jocelerme Privert, who became Haiti's caretaker leader in February after a presidential runoff was scrapped for a third time, has been trying to show he can guarantee stability as the election impasse has widened divisions in the polarised country.