Below are some links to associations and other recoures.

EPSMA – EPS Molders Association – www.epsmolders.org
IIAR – The International Institute of Ammonia Refrigeration – www.iiar.org
IARW – International Association of Refrigerated Warehouses – www.iarw.org
R.E.T.A. – Refrigerating Engineers & Technicians Association – www.reta.com
IACSC – International Association for Cold Storage Construction – www.iacsc.org
IRTA – International Refrigerated Transportation Association, Inc. - www.iarw.org/irta/
UL – Underwriters Laboratories Inc. – www.ul.com
Lanier Technical College - www.laniertech.edu/econdev/ar.asp