Under the Family and Medical Leave Act of 1993, covered employers must post a notice approved by the Secretary of Labor explaining rights and responsibilities under FMLA. The poster at WH Publication 1420 is sufficient.
Under 29 CFR 825.300:
(a) Every employer covered by the FMLA is required to post and keep posted on its premises, in conspicuous places where employees are employed, whether or not it has any “eligible” employees, a notice explaining the Act’s provisions and providing information concerning the procedures for filing complaints of violations of the Act with the Wage and Hour Division. The notice must be posted prominently where it can be readily seen by employees and applicants for employment. Employers may duplicate the text of the notice contained in Appendix C of this part (WH Publication 1420), or copies of the required notice may be obtained from local offices of the Wage and Hour Division. The poster and the text must be large enough to be easily read and contain fully legible text.
(b) An employer that willfully violates the posting requirement may be assessed a civil money penalty by the Wage and Hour Division not to exceed $100 for each separate offense. Furthermore, an employer that fails to post the required notice cannot take any adverse action against an employee, including denying FMLA leave, for failing to furnish the employer with advance notice of a need to take FMLA leave.
(c) Where an employer’s workforce is comprised of a significant portion of workers who are not literate in English, the employer shall be responsible for providing the notice in a language in which the employees are literate.