The following state mandates limit the amount of water that can flow from the specified plumbing products. The table below shows the maximum flow rate for plumbing products that can be sold at retail in various states/regions within the U.S.
| State | Referenced Legislation or Regulation | Fixture-Fitting | ||||
|---|---|---|---|---|---|---|
| Water Closets | Urinals | Private Lavatory Faucets | Showerheads | Kitchen Faucets | ||
| Colorado | SB 14-103 | 1.28 GPF | 0.5 GPF | Public-0.5 GPM Residential-1.5 GPM |
2.0 GPM | 1.8/2.2 GPM* |
| New York | A2286 | 1.28 GPF | 0.5 GPF | 1.5 GPM | 2.0 GPM | NA |
| Oregon | HB 2062 | 1.28 GPF | 0.5 GPF | Public-0.5 GPM Residential-1.2 GPM |
1.8 GPM | 1.8/2.2 GPM* |
| Vermont | H.410 (Act 139) | Adhere to EPACT 92 | 0.5 GPF | Public-0.5 GPM Residential-1.5 GPM |
2.0 GPM | 1.8/2.2 GPM* |
| Washington | HB 1444 | SB 5115 | 1.28 GPF | Wall 0.125 GPF Other Types 0.5 GPF |
Public-0.5 GPM Residential-1.2 GPM |
1.8 GPM | 1.8/2.2 GPM* |
| Hawaii | HB556 | Ahere to EPACT 92 | 0.5 GPF | Public-0.5 GPM Residential-1.2 GPM |
1.8 GPM | 1.8/2.2 GPM* |
| Maryland | Chapter 564, House Bill 772 | 1.28 GPF | 0.5 GPF | Public-0.5 GPM Residential-1.5 GPM |
2.0 GPM | 1.8/2.2 GPM* | Massachusetts | S9 | 1.28 GPF | 0.5 GPF | Public-0.5 GPM Residential-1.5 GPM |
2.0 GPM | 1.8/2.2 GPM* |
| Rhode Island | H 5966 | S 0339 | 1.28 GPF | 0.5 GPF | 1.5 GPM | 2.0 GPM | 1.8/2.2 GPM* | California | California Appliance Efficiency Regulation Title 20 | 1.28 GPF | Wall 0.125 GPF Other Types 0.5 GPF |
Public-0.5 GPM Residential-1.2 GPM |
1.8 GPM | 1.8/2.2 GPM* |
| New Jersey | A 5160 | S 3324 | 1.28 GPF | 0.5 GPF | 1.5 GPM | 2.0 GPM | 1.8/2.2 GPM* |
| * Maximum flow rate is 1.8 GPM with optional temporary flow of 2.2 GPM | ||||||
