Generally, work schedules are posted on Thursday for the following week. From time to time, your manager may need to change your schedule to meet scheduling or other needs. You should take the time each week to review your schedule. A manager will try to avoid conflicts by knowing in advance days requested off, however not all requests will be honored. Refer any questions that you may have to your manager.
Commentary (if any):
WARNING: Do NOT simply adopt a policy or add it to your handbook or manual without consulting with a qualified HR professional or employment lawyer. A sample policy may not be proper or even lawful in your particular situation. You’ve been warned.