2006 New York Code - Duties Of Employers.

 
    §  135.  Duties of employers. 1. The employer of any minor required to
  have an employment certificate:
    a. Shall, before employment begins, file at the place of  the  minor's
  employment  such certificate so that it may be readily accessible to any
  person authorized by law to examine such document;
    b. Shall, upon the termination of the minor's employment,  return  the
  employment certificate to the minor;
    c.  (i)  Shall,  if the employer is engaged in a business of assigning
  employees for temporary  services  at  another  establishment,  and  the
  employer  compensates  the  employee for such services rendered, keep on
  file in his or her office the employment certificate and shall cause  to
  be  delivered  to each establishment where the child will perform his or
  her services a true copy of such employment certificate.  Such  delivery
  shall  be  deemed  compliance with this section and sections one hundred
  thirty-one and one hundred thirty-two of this article. The owner of each
  establishment to which the child is assigned shall keep on file  in  his
  or  her  office  such copy of the employment certificate, which shall be
  deemed compliance with this section, and shall return such copy  to  the
  employer  at  the  conclusion  of  the child's assignment. Such employer
  shall note on the original employment certificate the existence of  each
  copy.
    (ii)  As used in this subdivision, the term "establishment" includes a
  factory, mercantile establishment, business office,  restaurant,  hotel,
  and any other trade, business or service.
    2.  The  employer  of  any  person claiming to be between eighteen and
  twenty-five years of age who does not present an employment  certificate
  duly  issued  for  him or her must require from such person, and furnish
  upon demand to the commissioner or his or her authorized representative,
  proof of the age of such person in the form of  a  driver's  license  or
  other  documentation issued by the government of the United States or of
  any state located therein, or a certificate of age issued to such person
  by an employment certificating official. Such proof of age or a  legible
  photocopy  thereof,  or an employment certificate, previously issued for
  such person and on file in the place of his or her employment, shall  be
  conclusive  evidence  that  the  person has reached the age certified to
  therein.