ASHRAE, founded in 1894, is a global society advancing human well-being through sustainable technology for the built environment. The Society and its members focus on building systems, energy efficiency, indoor air quality, refrigeration and sustainability within the industry. Through research, standards writing, publishing and continuing education, ASHRAE shapes tomorrow’s built environment today. ASHRAE was formed as the American Society of Heating, Refrigerating and Air-Conditioning Engineers by the merger in 1959 of American Society of Heating and Air-Conditioning Engineers (ASHAE) founded in 1894 and The American Society of Refrigerating Engineers (ASRE) founded in 1904.  

ASHRAE 90.1

ANSI/ASHRAE/IES Standard 90.1-2013 -- Energy Standard for Buildings Except Low-Rise Residential Buildings

ASHRAE 90.2

Economic Database in Support of ASHRAE 90.2 (Energy-Efficient ...
Economic Database in Support of ASHRAE 90.2 (Energy-Efficient Design of Low-Rise ...
Economic Database in Support of ASHRAE 90.2 1481-RP NAHB Research Center ... 

ASHRAE 189.1

ANSI/ASHRAE/IES/USGBC Standard 189.1 provides total building sustainability guidance for designing, building, and operating high-performance green buildings. From site location to energy use to recycling, this standard set the foundation for green buildings by addressing site sustainability, IEQ, and building impact.

Read more at the ASHRAE website.