Status:

No progress. Last legislative action: Received in the Senate, read twice, and referred to the Senate Committee on Energy and Natural Resources on January 15, 2026.

Date of Status:

Last Verified July 14, 2026.

Purpose:

H.R. 4593 amends the Energy Policy and Conservation Act to redefine “showerhead” for federal water efficiency regulations. It adopts the ASME A112.18.1-2024 standard, with an exclusion for safety shower devices. The bill directs the Department of Energy to update its regulations within 180 days of enactment to align with the new definition.

Impact on Water Industry:

The bill could affect federal water efficiency standards that influence residential water use. It may change how multi-nozzle shower systems are regulated and certified under DOE rules.

Utilities and conservation programs could see indirect effects on demand management targets and efficiency planning, depending on implementation.

Funding:

No program funding is provided. The Congressional Budget Office estimates minimal administrative costs (under $500,000 in 2026) for regulatory updates, covered by existing appropriations.

Sources: