When writing an emergency response plan, identify spill-prone areas in your facility and customize a plan of action for each, based on the volume or nature of the chemicals stored there. Response to a 1 oz. laboratory spill will be much different from response to a break in the main feed line supplying a flammable material to a processing area.
Documenting possible scenarios and detailing the steps for effective response is a key to thorough planning, because it helps identify what resources are necessary. The time to find out you need a backhoe to create an earthen dam is not when the bottom fill valve of a tanker truck fails during offloading a bulk shipment.
Plans should also detail employee responsibilities. Rather than write particular names into the plan, it may be better to categorize employees – for example, “office staff,” “press operators”, etc. – so that you can facilitate training by employee type and not have to alter your plan every time someone changes positions or leaves your company.