In the oil and gas industry, a shutdown is enacted by halting plant operations for scheduled maintenance, upgrades, and other reasons that improve efficiency. The stop of activities requires specialty positions. A shutdown manager's responsibilities are to lead a multi-discipline project team and oversee the overall progress and outcome. A shutdown scheduler's duties are to schedule the timeline, prepare to shut down and ensure the correct work is completed. Engineers are also needed to execute operations strategically and complete activities in a safe and timely manner.