# Regulatory Guide: Maintenance, Testing, and Replacement of Vented Lead-Acid Storage Batteries for Production and Utilization Facilities l
> **Nuclear Regulatory Commission** · Final guide; issuance. · Published 2023-03-27 · 88 FR 18005
## Document
- **Document number:** 2023-06285
- **Category:** other
- **Sub-agency:** Nuclear Regulatory Commission
- **Federal Register citation:** 88 FR 18005
- **CFR reference:** 10 CFR 50
- **Publication date:** 2023-03-27
- **Energy docket:** NRC-2022-0159
## Abstract

The U.S. Nuclear Regulatory Commission (NRC) is issuing Revision 4 of Regulatory Guide (RG) 1.129, "Maintenance, Testing, and Replacement of Vented Lead-Acid Storage Batteries for Production and Utilization Facilities." This revised guidance provides information to manage vented lead-acid battery degradation such that a battery in service would retain its readiness for supporting design-basis events. It endorses, with certain clarifying regulatory positions, Institute of Electrical and Electronics Engineers (IEEE) Standard (Std.) 450-2020, which provides the recommended maintenance, test schedules, and testing procedures intended to optimize the life and performance of permanently installed vented lead-acid storage batteries used for standby power applications. It also provides guidance to determine when batteries should be replaced.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/03/27/2023-06285/regulatory-guide-maintenance-testing-and-replacement-of-vented-lead-acid-storage-batteries-for)
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