• Identify all activities that will occur simultaneously in the same area.
• Issue a SIMOPS permit cross-referencing the individual permits for each activity.
• Appoint a SIMOPS coordinator to manage the interaction between activity teams.
• Brief all affected teams together on the combined risks and agreed controls.
• Display the SIMOPS permit where all parties can see it during the work.
• Define time sequencing where one activity must finish before another can start.
• Review the SIMOPS arrangement if conditions, scope, or timing change during the shift.
• Ensure each team knows who is responsible for coordination and communication.
• Close the SIMOPS permit formally when all simultaneous activities are complete.
• Record the SIMOPS coordination as part of the project safety documentation.

• DON'T allow multiple high-risk activities in the same area without a SIMOPS permit.
• DON'T assume individual permits cover the interaction risks between activities.
• DON'T start a second activity without briefing the first activity team on the risks.
• DON'T proceed without a named SIMOPS coordinator managing the combined operations.
• DON'T keep SIMOPS information in one permit; all affected teams must see it.
• DON'T ignore changes in scope or timing that affect the SIMOPS arrangement.
• DON'T allow hot works to proceed near confined space entry without joint assessment.
• DON'T operate cranes over workers carrying out excavation without SIMOPS controls.
• DON'T close individual permits without also closing the SIMOPS coordination permit.
• DON'T assume teams from different companies will coordinate without formal systems.

See also: Permit to Work Awareness | Multi-Trade Coordination Safety