Section 3221. Pledge of employment

The  pledge  of employment shall be
  signed  by  the  initial  prospective   employer   or   his   authorized
  representative  and  shall  show  his  name  and  place of business, the
  minor's name, the number of days per week and the number  of  hours  per
  day  and  per  week  during  which he will be employed, the hours of the
  beginning and the ending of  work,  and  the  nature  and  type  of  the
  employment.