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H.R. 4593119th CongressPassed one chamberLatest action Jan 15, 2026Decoded by AI · checked against the record
The plain-language version leads. The official text is always the reference.
HR 4593 redefines "showerhead" using a 2024 industry standard, which could allow multi-head shower systems to use more water overall.
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HR 4593 would replace the federal energy law definition of "showerhead" with the definition found in industry plumbing standard ASME A112.18.1-2024. Emergency safety showers, such as eyewash stations in labs or factories, would be excluded from the new definition. The Department of Energy would have 180 days to update its regulations to match the change.
The bill most directly affects shower product manufacturers, retailers, and homeowners or builders who install shower systems. People who use or prefer multi-head or high-flow shower setups could face different product availability depending on how the new definition is applied.
The current federal definition has been used to apply a single total water flow limit to multi-head shower systems. Adopting the industry standard definition could result in each showerhead in a multi-head system being treated separately, potentially allowing higher overall water use. This may have greater consequences in regions where water conservation is a concern.
AI-drafted summary. Verify it against the official text before you act on it. Read the official bill on Congress.gov
Right now: it passed the House, and the official record shows nothing new since. If the Senate changes it, it goes back to the House before reaching the President.
Latest action: — Received in the Senate and Read twice and referred to the Committee on Energy and Natural Resources.