This manual is designed to assist hiring managers with appropriate hiring processes and Human Resources practices. Most employers are surprised to learn that California does not require companies to have an employee handbook.California does not require employers to have a handbook. However, if you create a handbook, there are policies that must be included. This Employee Handbook ("Handbook") is designed to ensure that you have the information you need to be successful at the OSA. Employee handbooks are not mandatory under California law, but if you develop one, it must include certain policies. These are some of the sample policies you may wish to include in an employee handbook. No, employee handbooks are not required in California. However, having an employee handbook is still best practice for several reasons. Because it is not a legal requirement in California, some employers do not consider drafting an employee handbook.