Proposed Standards and Guidelines standards and guidelines are used throughout the world. They stimulate innovation and creation and are the stepping stones to improving product performance. Through the use of industry standards and voluntary participation in's certification programs, consumers can be assured manufacturers' performance claims are accurate and rated uniformly, enabling fair comparisons. provides access to its standards and guidelines, as well as information about how they are developed and advanced globally.

New Standards/Guidelines under Development
  • Proposed Standard 375P, Application Sound Rating of Outdoor Large Equipment
  • Proposed Standard 500P, Calculation of Integrated Energy Efficiency Ratio (IEER) and Simultaneous Heating and Cooling Efficiency (SCHE) for Water-Source Heat Pumps
  • Proposed Standard 860P, Performance Rating of Fan-powered Chilled Water Terminals
  • Proposed Standard 930P, Performance Rating of Wrap Around Heat Exchangers
  • Proposed Standard 1231P (SI), Performance Rating of Variable Refrigerant Flow (VRF) Multi-Split Air-conditioning and Heat Pump Equipment
  • Proposed Standards 1290P (I-P) & 1291P (SI), Performance Rating of Zoning Products
  • Proposed Standards 1310P (I-P) & 1311P (SI), Wind Load Design of HVACR Equipment
  • Proposed Standards 1370P (I-P) & 1371P (SI), Performance Rating of Electronic Expansion Valves
  • Proposed Standards 1380P (I-P) & 1381P (SI), Methods for Coordinated Energy Management in Residential Applications
  • Proposed Standard 1400, Indirect-fired Water Heater Testing Standard
  • Proposed Standard 1410, Finned Tube (Commercial) Testing and Rating Standard
  • Proposed Standards 1510P (I-P) & 1511P (SI), Performance Rating of Ultraviolet Light Equipment Compressors
  • Proposed Standard 1520P, Performance Rating of Centrifugal Compressors
  • Proposed Guideline M, Unique Fittings and Service Ports for Flammable Refrigerant Use
  • Proposed Guideline Y, Residential Humidifiers Energy Consumption