Here is our basic layout at a 30 team member powder drying facility. We are not SQF rather BRC but is a start
Crisis team member layout and who is responsible for what (corporate, plant management, staff) corporate to do media/customer relations and funds procurement. Plant management to notify regulatory, emergency clean up services, other team members and set up action plan including what or where to manufacture or store product if possible. You will need to have a offsite meeting location in the event your facility is not inhabitable.
Who is critical to contact in emergency (Federal, state/providence, customer, certification body)
identify threats fire/flood/explosion/gas leak/human emergency/power outage. Also we give levels such as Tier 1 all or part of facility is down for 6-16hrs (Chemical spill, power outage, gas leak, lightning strike). Tier 2 16hs to 5 days (fire, tornado, flood) Tier 3 greater than 5days (explosion, fire, tornado)
Very detailed instruction of what your team would do if you had any of the above incidents (fire, flood, explosion, neighborhood lock down) and it doesn't hurt to practice some of these scenarios
A list of plant/ corporate/customer contacts both during and after hours.
Contacts of clean up crews, rental places, offsite meeting places, secondary manufacturing/storage facilities and the like
No matter how small of business its also a good idea to reach out to local fire dept or sheriffs office with a tour of your facilities, hazards, and plans incase the worst should happen. Now if you're a 10 person plant in downtown New York or Chicago this may be difficult but still worth a try.
For other thoughts look to the search bar above for emergency procedures.