Where two or more employers have employees sharing the same worksite, and all the required federal posters are conspicuously posted where all the employees can see them, then only one set of posters is required.
However, different employers may have different posters requirements. Therefore, since the posters required of both employers must be posted and visible to employees, each employer at that worksite is responsible for ensuring that all the federal workplace posters that pertain to his or her employees are posted and readily visible as required.
Also remember that some posters must be posted where applicants for employment can see them.