# Energy Conservation Program: Test Procedure for Uninterruptible Power Supplies
> **US Department of Energy** · Final rule. · Published 2024-04-19 · Effective 2024-07-03 · 89 FR 28581
## Document
- **Document number:** 2024-07612
- **Category:** other
- **Sub-agency:** US Department of Energy
- **Federal Register citation:** 89 FR 28581
- **CFR reference:** 10 CFR 430
- **Publication date:** 2024-04-19
- **Effective date:** 2024-07-03
- **Energy docket:** EERE-2022-BT-TP-0005
## Abstract

The U.S. Department of Energy ("DOE") is amending the test procedure for uninterruptable power supplies ("UPSs") to incorporate by reference relevant portions of the latest version of the industry testing standard, harmonize the current DOE definitions for UPS, total harmonic distortion, and certain types of UPSs with the definitions in the latest version of the industry standard, and add a no-load testing condition, as an optional test.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/04/19/2024-07612/energy-conservation-program-test-procedure-for-uninterruptible-power-supplies)
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