Historical
ANSI/ASHRAE/IESNA 90.1-2007
Energy Standard for Buildings Except Low-Rise Residential Buildings, I-P Edition
This standard provides: (a) minimum energy-efficient requirements for the design and construction of: 1. new buildings and their systems, 2. new portions of buildings and their systems, and 3. new systems and equipment in existing buildings and (b) criteria for determining compliance with these requirements.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]