About This Resource Pack 4. Own Your Barrier About Pack aims: Understand that everyone, regardless of their job, owns barriers which keep us all safe from Major Accident HazardsConsider which barriers you own and interact with Pack 4 contains two films featuring people talking about the barriers they own. The films address the following barriers: Part 1: site induction, control of work, plant design & tagging, competence & training, emergency shutdown, Ex equipment, toolbox talks. Part 2: deluge system, management of change, ESDV, communication, gas detection, stop the job authority. Get access Access all resources, videos and files by becoming a member today.