# Energy Conservation Program: Test Procedure for Ceiling Fans
> **US Department of Energy** · Final rule. · Published 2022-08-16 · Effective 2022-09-15 · 87 FR 50396
## Document
- **Document number:** 2022-16951
- **Category:** other
- **Sub-agency:** US Department of Energy
- **Federal Register citation:** 87 FR 50396
- **CFR reference:** 10 CFR 429
- **Publication date:** 2022-08-16
- **Effective date:** 2022-09-15
- **Energy docket:** EERE-2013-BT-TP-0050
## Abstract

The U.S. Department of Energy ("DOE") is amending the test procedures for ceiling fans to include a definition for "circulating air" for the purpose of the ceiling fan definition; include ceiling fans greater than 24 feet within the scope of the test procedure; include certain belt-driven ceiling fans within the scope of the test procedure; specify that certain very small-diameter ceiling fans are not required to be tested; maintain applicability of the standby power test procedure to large-diameter ceiling fans; specify instructions for testing ceiling fans with certain accessories or features; clarify test voltage for large-diameter ceiling fans; amend the low speed definition and increase low speed tolerance for stability criteria; permit an alternate set-up to collect air velocity test data and provide greater specificity regarding sensor orientation; amend the blade thickness measurement requirement; update instrument measurement resolution, represented values, rounding instructions, and enforcement provisions; and codify current guidance on calculating several values reported on the EnergyGuide label. DOE is also updating references to an industry test standard to reference the latest version.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/08/16/2022-16951/energy-conservation-program-test-procedure-for-ceiling-fans)
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