NIA – National Insulation Association
A service organization, promoting the general welfare of the commercial and industrial insulation and asbestos abatement industries.
WICA – Western Insulation Contractors Association
A regional affiliate of the National Insulation Association (NIA).
RETA – Refrigeration Engineering and Technicians Association.
An International society involved in the design, operation, and service of refrigeration and air conditioning system.
IIAR – International Institute of Ammonia Refrigeration
An international organization dedicated specifically to the use of ammonia as refrigerant, and in the advancement of its safe and efficient use.