Randy
Super Moderator
So totally wrong as Mike pointed out, you'd essentially go 2 years with no internal look and "effectiveness" would be in question.Leave it intentionally vague and say "annually" rather than once every calendar year.
Just define something that says "no more than X number of days" like "annually or no more than 365 calendar days". Give yourself some latitude to set your "period" but elbowroom to allow flexibility.