Employment standards laws require employees to provide notice of termination but don’t specify that it must be in writing. But you still can and I think it’s a good idea to require written notification, and many companies do it for just the reasons you say. I’d also make written notice a requirement of the employment contract. This gives you legal grounds to enforce. As a practical matter, though, it’s generally not the kind of thing you’d sue over, unless the employee is pretty high-ranking. But in a more elaborate case, being able to point to an employee’s contract violation is bound to help your case to some degree. Hope that helps. Glenn