You should have a clear emergency plan, including evacuation routes, medical assistance, and communication procedures.

You should have sufficient staff to manage crowds, control lines, and prevent overcrowding.
You should have security measures to prevent unauthorized access and manage potential risks such as theft, violence, or terrorism.
You should ensure that the event space is equipped with fire extinguishers, smoke alarms, and other fire safety measures and have a fire evacuation plan.
You should monitor and plan for inclement weather, such as rain, wind, or extreme temperatures.
You should ensure that food vendors follow proper food handling and preparation practices to prevent foodborne illnesses.
You should ensure that all electrical equipment used at the event is properly grounded and in good working condition.
You should monitor alcohol consumption to prevent overconsumption and ensure alcohol is not served to underage attendees.
You should ensure that there are adequate restroom facilities and that they are cleaned regularly to prevent the spread of germs.