Each house will then have 90 Congressional working days to vote on the pact, with a simple majority needed for approval.
Sometime after next June 1 it would vote on the pact.
The House vote on the pact is only 13 days away.
Voting by workers on the two-year pact will begin next week.
And with only three weeks to the election, opinion surveys on the pact itself showed shrinking support for it.
The election thus would serve as a national referendum on the pact.
But the company declined to make changes and the council had to vote on the pact as negotiated.
He added that 99.5 percent of active members who voted on the pact had approved it.
Another 6 percent said they had no opionion on the pact.
The agreement assures that a final vote on the pact will be taken this year.