U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 10Chapter IIPart 431Subpart J - Subpart J—Fans and Blowers
§ 431.171 - Purpose and scope.
§ 431.172 - Definitions.
§ 431.173 - Materials incorporated by reference.
§ 431.174 - Test Procedure for fans or blowers.
§§ 431.175-431.176 - §[Reserved]
Appendix Appendix A - Appendix A to Subpart J of Part 431—Uniform Test Method for the Measurement of Energy Consumption of Fans and Blowers Other Than Air Circulating Fans
Appendix Appendix B - Appendix B to Subpart J of Part 431—Uniform Test Method for the Measurement of Energy Consumption of Air Circulating Fans
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