NOTICE OF PROPOSED EMERGENCY RULEMAKING: Prohibited wasteful water uses emergency regulation for water conservation

From the State Water Resources Control Board:

On December 7, 2022, the State Water Board will consider a proposed resolution readopting the emergency regulation to prohibit wasteful water uses, that was previously adopted in January 2022, before it expires in January 2023.

The emergency regulation requires, among other things, a prohibition on:

  • the application of water to outdoor landscapes in a manner that causes visible runoff,
  • the use of a hose to wash an automobile except where the hose is equipped with a shut-off nozzle,
  • the application of water to hardscapes,
  • the use of potable water in non-recirculating ornamental fountains, and
  • the watering of grass and decorative landscapes during and within 48 hours after measurable rainfall of at least one fourth of one inch of rain.


Instructions for the rulemaking process can be found in the Notice here:


The draft regulation documents, including the draft regulation text, can be found by clicking “Find Regulation Documents” at:


Any interested person may submit written comments relevant to the proposed regulatory action to the State Water Board. Written comments must be received no later than 12 noon, on Friday, December 2, 2022. The State Water Board will only consider written comments received by that time. Please send comment letters to Ms. Jeanine Townsend, Clerk to the Board, by email at, (916) 341-5620 (fax), or by mail or hand delivery addressed to:

Jeanine Townsend, Clerk to the Board
State Water Resources Control Board
P.O. Box 100, Sacramento, CA 95812-2000 (by mail)
1001 I Street, 24th Floor, Sacramento, CA 95814 (by hand delivery)

Please also indicate in the subject line, “Comment Letter – Prohibited Uses Emergency Regulation Dec 2022.” Hand and special deliveries should also be addressed to Ms. Townsend at the address above. Couriers delivering comments must check in with lobby security and have them contact Ms. Townsend at (916) 341-5600.

Due to the limitations of the email system, emails larger than 15 megabytes are rejected and cannot be delivered or received by the State Water Board. We request that comments larger than 15 megabytes be submitted under separate emails. If you would like to request a copy of the public comment letters received by the Board for this item, send an email to and identify that you are requesting copies of public comments for Prohibited Uses Emergency Regulation Dec 2022.

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