29 U.S.C. § 2619 : US Code - Section 2619: Notice

    (a) In general
      Each employer shall post and keep posted, in conspicuous places
    on the premises of the employer where notices to employees and
    applicants for employment are customarily posted, a notice, to be
    prepared or approved by the Secretary, setting forth excerpts from,
    or summaries of, the pertinent provisions of this subchapter and
    information pertaining to the filing of a charge.
    (b) Penalty
      Any employer that willfully violates this section may be assessed
    a civil money penalty not to exceed $100 for each separate offense.