Sun Tran officials and union representatives are entering the final hours to negotiate terms of a new contract before a possible transit strike occurs.

The contract for bus drivers and other bargaining unit employees expires at 11:59 p.m., according to a Sun Tran news release.

Union members can authorize a strike as early as Thursday if the two sides don't reach an agreement.

If there is a service disruption, Sun Tran will still offer limited service on select routes from 6 a.m. to 6:30 p.m. Monday through Friday, mostly on buses that serve main corridors.

"We continue to be hopeful an agreement can be reached prior to the expiration of the contract extension," said Sun Tran General Manager Kate Riley in a statement. "We encourage riders to plan accordingly and identify potential transportation alternatives in case a service disruption is called."

For more information on possible service changes, call 792-9222 or go to www.suntran.com