Employers must have a method to communicate the policies and rules to their employees. However, this method is not limited by law. Having policies posted on bulletin boards, listed on the company’s Intranet, issued in memos to all employees, and published in the handbook have all be deemed as legal methods of communication.
Any method that allows all employees to freely access the rules and policies of the employer will probably be accepted by the court. The primary issue with rules and policies is that they are applied equally to every employee.