The first 90 days of your employment will be under a probationary period. You could begin describing conditions that got you a probation letter (immaturity, poor study habits, family issues, work hours, whatever).You can can add a probationary period to your employment contracts very simply with Legislate. I got a few offers, and one of them (my top choice) has a 90 day probation period. In this article, we'll explain a few tips on managing employees that are undergoing probationary periods. Every appointment and promotion to a position in the competitive or labor class shall be for a probationary period of one year unless otherwise set forth. Most employment verification letters usually just state that the party is employed, when employment started, type of position and possibly salary. What is their job title and proposed start date? You may also include information about their probationary period, if applicable, and the date this ends. A new hire probation letter is a formal document given to newly hired employees, informing them of a probationary period, often lasting 3 to 6 months.