Employee handbooks are not mandatory under California law, but if you develop one, it must include certain policies. Learn about California employee handbook requirements and optional California employee handbook policies, then find out how we take the work out of compliance.The Office of Employee Relations is responsible for maintaining and updating the City Policy Manual (CPM), which is the City's Administrative Policy Manual. This guide will provide a general overview of California's regulations for small to medium size businesses. Learn how to write a employee handbook in California. These are some of the sample policies you may wish to include in an employee handbook. Equal Employment Opportunity Commission (EEOC), San Jose Office. The mission of the California Labor Commissioner's Office is to ensure a just day's pay in every workplace in the State and to promote economic justice. The employee handbook should include a statement that summarizes each policy and procedure. The employee handbook can help prevent miscommunication with the team.