But Teamster officials said they had based their proposed election rules largely on those of past years.
"Those votes say a lot about what's happening in the union, and it's a real problem for us," said a senior teamsters official.
The review board is responsible for looking into charges of corruption by teamster officials.
Teamsters officials have complained about layoffs within facilities of their members.
Teamsters officials say the government supervision should end not as a political favor but because the union has been cleaned up extensively.
The prosecutors have questioned more than half a dozen teamster officials and consultants.
Teamsters officials accused the group of delaying a union vote so it could intimidate the workers.
Teamsters officials initially claimed the settlement retained a single wage scale.
His defenders say the charges were based on the testimony of just one official, while several other Teamster officials have testified to the contrary.
The convention, which runs through Friday, gives thousands of Teamster officials time to enjoy the city.