ASHRAE Region III is located in the Mid-Atlantic Region of the United States of America and includes 11 chapters and over 4,600 members in Pennsylvania, Delaware, Maryland, Virginia, and Southern New Jersey.

ASHRAE®, is an international organization of over 56,000 persons with chapters throughout the world. The Society is organized for the sole purpose of advancing the arts and sciences of heating, ventilation, air-conditioning and refrigeration for the public's benefit through research, standards writing, continuing education and publications. Through its membership, ASHRAE writes standards that set uniform methods of testing and rating equipment and establish accepted practices for the HVAC&R industry worldwide, such as the design of energy efficient buildings. The Society's research program, currently more than 100 research projects worth nearly $8 million, investigates numerous issues, such as identifying new refrigerants that are environmentally safe. ASHRAE organizes broad-based technical programs for presentation at it's semi-annual meetings and co-sponsors the international Air-Conditioning, Heating, Refrigeration Exposition, the largest HVAC&R trade show in North America.