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. The probationary period is used as a time to assess whether the new hire or newly promoted employee is a good fit for the position.A probationary period is a stretch of time during which a new or existing employee receives extra supervision and coaching. 90 days is pretty short. If you like the company and get good vibes, I wouldn't worry about it particularly as a recent grad. A new hire probationary period is a predetermined timeframe that starts on the employee's date of hire and concludes at the end of the period. The first year of service of an employee who is given a career or career-conditional appointment under this part is a probationary period. The first six months of employment are considered a probationary period. A 90day probationary period is the standard practice in the United States. Probationary periods can be shorter or longer, at the discretion of the employer.