The trial arising from the explosion at a Glasgow chemical factory in which nine people died is now expected to begin in August.
The explosion at the Stockline factory claimed nine lives
About 30 people were seriously injured in the blast at the ICL company in Maryhill on 11 May, 2004.
It was estimated that the trial would last more than three months, but following discussions with lawyers it is likely to take about a fortnight.
Survivors and rescue personnel are not now expected to give evidence.
Two companies - ICL Tech Ltd and ICL Plastics Ltd - have been charged in connection with the blast.
The explosion in the Grovepark Mills, Hopehill Road, Maryhill, destroyed the factory killing nine workers and injuring more than two dozen, some seriously.
There are four charges brought under the Health and Safety at Work Act.
They allege that both companies failed to ensure their workers were not exposed to risks of personal injury and death from fire, explosion and other dangers.
It is claimed these arose out of corroded pipes and an escape of liquid petroleum gas which accumulated in the basement and exploded.