Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
408.3 Water Consumption — 2025 California Plumbing Code
California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Plumbing Code (Title 24, Part 5) § 408.3 · Effective January 1, 2026 · Official source: Building Standards Commission
Showerheads shall have a « maximum flow rate of not more than 1.8 gpm at 80 psi ( 6.81 L/m at 552 kPa). Body sprays shall have a flow rate of not more than 1.8 gpm at 80 psi ( 6.81 L/m at 552 kPa). [HCD 1] Residential showerheads shall comply with Division 4.3 of the California Green Building Standards Code (CALGreen). Residential body sprays shall comply with the showerhead requirements in Division 4.3 of CALGreen. [BSC-CG & DSA-SS] Nonresidential body sprays shall comply with the showerhead requirements in Division 5.3 of CALGreen.
408.3.1 Single Showerhead. [BSC-CG & DSA-SS] Showerheads shall have a maximum flow rate of not more than 1.8 gallons (6.81 L) per minute at 80 psi. Showerheads shall be certified to the performance crite- ria of the U.S. EPA WaterSense Specification for Show- erheads in compliance with Chapter 5, Division 5.3. of the California Green Building Standards Code (CAL- Green).
PLUMBING FIXTURES AND FIXTURE FITTINGS
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