(a) A professional employer organization expressly agrees to co-employ
all or a majority of the employees providing services for the client;
  (b) The contract is intended to be on-going rather than  temporary  in
nature;
  (c)  Employer responsibilities for worksite employees, including those
of hiring, firing and  disciplining,  are  expressly  allocated  by  and
between  the  professional  employer  organization and the client in the
agreement; and
  (d) The  professional  employer  organization  expressly  assumes  the
rights   and  responsibilities  as  required  in  section  nine  hundred
twenty-two of this article.
  4.  "Professional  employer  organization"  means  any  person   whose
business is entering into professional employer agreements with clients.
In  determining  whether  the professional employer organization employs
all or a majority of the employees of  a  client,  any  person  employed
pursuant  to  the terms of the professional employer agreement after the
initial placement of client employees on the payroll of the professional
employer organization  shall  be  included.  Temporary  help  firms  and
employment  agencies,  as  defined  in  article  eleven  of  the general
business  law,  shall  not  be  deemed  to  be   professional   employer
organizations for purposes of this article.
  5. "Temporary help firm" means a business which recruits and hires its
own  employees,  and  assigns  those  employees  to  perform  work at or
services for other organizations, to support  or  supplement  the  other
organization's  workforce,  or  to  provide  assistance  in special work
situations such  as,  but  not  limited  to,  employee  absences,  skill
shortages,  seasonal  workloads,  or  to  perform special assignments or
projects. A temporary help firm shall not be deemed to be a professional
employer organization for the purposes of this article.
  6.  "Worksite  employee"  means  a   person   having   an   employment
relationship  with  both  the professional employer organization and the
client. Such term may also include  the  client's  officers,  directors,
shareholders  or  partners to the extent such persons act as operational
managers or perform services for the client.