The U.S. Department of Energy (``DOE'') proposes to amend the existing test procedure for showerheads to revise the definition of a showerhead consistent with the most recent standard developed by the American Society of Mechanical Engineers (``ASME'') in 2018. DOE's current definition considers all of the individual showerheads (which DOE has termed variously as sprays, openings, or nozzles) in a product containing multiple showerheads together for purposes of compliance with the water conservation standard established in the Energy Policy and Conservation Act (``EPCA''). DOE proposes instead to define showerhead as that term is defined in the 2018 ASME standard, such that each showerhead in a product containing multiple showerheads would be considered separately for purposes of determining standards compliance, and only one of them would need to be turned on for testing. DOE has determined that the proposed definition is consistent with EPCA and, unlike the current definition, compliant with Office of Management and Budget (``OMB'') Circular A-119. In addition, the proposed definition is consistent with DOE's treatment of other products, such as body sprays. DOE also proposes to define the terms ``body spray'' and ``safety shower showerhead'' to clarify which products are not subject to the current energy conservation standard. DOE invites comment on all aspects of this proposal, and announces a public webinar to collect comments and data on its proposal.