U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 10Chapter IIPart 431Subpart F - Subpart F—Commercial Air Conditioners and Heat Pumps

TEST PROCEDURES
§ 431.95 - Materials incorporated by reference.
§ 431.96 - Uniform test method for the measurement of energy efficiency of commercial air conditioners and heat pumps.
§ 431.91 - Purpose and scope.
§ 431.92 - Definitions concerning commercial air conditioners and heat pumps.

ENERGY EFFICIENCY STANDARDS
§ 431.97 - Energy efficiency standards and their compliance dates.
Appendix Appendix A - Appendix A to Subpart F of Part 431—Uniform Test Method for the Measurement of Energy Consumption of Commercial Package Air Conditioning and Heating Equipment (Excluding Air-Cooled Equipment With a Cooling Capacity Less Than 65,000 Btu/h)
Appendix Appendix A1 - Appendix A1 to Subpart F of Part 431—Uniform Test Method for the Measurement of Energy Consumption of Commercial Package Air Conditioning and Heating Equipment (Excluding Air-Cooled Equipment With a Cooling Capacity Less Than 65,000 Btu/h)
Appendix Appendix B - Appendix B to Subpart F of Part 431—Uniform Test Method For Measuring the Energy Consumption of Direct Expansion-Dedicated Outdoor Air Systems
Appendix Appendix C - Appendix C to Subpart F of Part 431—Uniform Test Method for Measuring the Energy Consumption of Water-Source Heat Pumps
Appendix Appendix C1 - Appendix C1 to Subpart F of Part 431—Uniform Test Method for Measuring the Energy Consumption of Water-Source Heat Pumps
Appendix Appendix D - Appendix D to Subpart F of Part 431—Uniform Test Method for Measuring the Energy Consumption of Variable Refrigerant Flow Multi-Split Air Conditioners and Heat Pumps (Other Than Air-Cooled With Rated Cooling Capacity Less Than 65,000 Btu/h)
Appendix Appendix D1 - Appendix D1 to Subpart F of Part 431—Uniform Test Method for Measuring the Energy Consumption of Variable Refrigerant Flow Multi-Split Air Conditioners and Heat Pumps (Other Than Air-Cooled With Rated Cooling Capacity Less Than 65,000 Btu/h)
Appendix Appendix E - Appendix E to Subpart F of Part 431—Uniform Test Method for Measuring the Energy Consumption of Computer Room Air Conditioners
Appendix Appendix E1 - Appendix E1 to Subpart F of Part 431—Uniform Test Method for Measuring the Energy Consumption of Computer Room Air Conditioners
Appendix Appendix F - Appendix F to Subpart F of Part 431—Uniform Test Method for the Measurement of Energy Consumption of Air-Cooled, Three-Phase, Small Commercial Package Air Conditioning and Heating Equipment With a Cooling Capacity of Less Than 65,000 Btu/h and Air-Cooled, Three-Phase, Variable Refrigerant Flow Multi-Split Air Conditioners and Heat Pumps With a Cooling Capacity of Less Than 65,000 Btu/h
Appendix Appendix F1 - Appendix F1 to Subpart F of Part 431—Uniform Test Method for the Measurement of Energy Consumption of Air-Cooled, Three-Phase, Small Commercial Package Air Conditioning and Heating Equipment With a Cooling Capacity of Less Than 65,000 Btu/h and Air-Cooled, Three-Phase, Variable Refrigerant Flow Multi-Split Air Conditioners and Heat Pumps With a Cooling Capacity of Less Than 65,000 Btu/h
Appendix Appendix G - Appendix G to Subpart F of Part 431—Uniform Test Method for Measuring the Energy Consumption of Single Package Vertical Air Conditioners and Single Package Vertical Heat Pumps
Appendix Appendix G1 - Appendix G1 to Subpart F of Part 431—Uniform Test Method for Measuring the Energy Consumption of Single Package Vertical Air Conditioners and Single Package Vertical Heat Pumps
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