In the same manner, your Business should have a plan for sudden illness or emergencies.  This would include fire, flood, hurricanes or even a pandemic.  Your business should have some type of Policies and Procedures Manual that would include your Emergency Plan.  This should be updated on a regular basis. 

In particular, if a key employee is leaving your company, you would want to have detailed information about their responsibilities.  If the employees gives sufficient notice, ask them to write down key information.  If possible, have them train their successor. 

Some of the items and information you will need to get before their departure include:

• Keys/key cards
• Access and Passwords to bank accounts, payroll or inventory programs, and other important computer systems
• Access and Passwords to health insurance, 401k plans and other benefits
• Computers, laptops and company owned cell phones

If your Business has a Plan in place, your Disaster will be easier to manage.  Make note of anything that is pertinent to your employees and industry.