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AB-1894 • 2026

Fish and wildlife: invasive mussels: imported water.

Fish and wildlife: invasive mussels: imported water.

Water
Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Blanca Rubio
Last action
2026-06-09
Official status
From committee: Do pass and re-refer to Com. on APPR. (Ayes 7. Noes 0.) (June 9). Re-referred to Com. on APPR.
Effective date
Not listed

Plain English Breakdown

The official source material does not provide information on the Department of Fish and Wildlife's role in preventing and managing invasive mussel infestations, nor does it specify reporting requirements for individuals or agencies who discover invasive mussels.

Invasive Mussels: Imported Water

This law prohibits public agencies from banning imported water for groundwater replenishment if the importation follows a control plan, unless there is clear evidence of health and safety risks due to invasive mussels.

What This Bill Does

  • Prohibits public agencies from prohibiting imported water deliveries for groundwater replenishment if these deliveries follow an approved invasive mussel control plan, unless there is substantial documented evidence of health and safety risks.

Who It Names or Affects

  • Public agencies responsible for managing imported water deliveries

Terms To Know

Invasive Mussels
Non-native species of mussels that can harm local ecosystems and water systems.
Groundwater Replenishment
The process of adding water to underground aquifers to maintain or increase the groundwater supply.

Limits and Unknowns

  • This law only applies until January 1, 2030.
  • It does not apply if there is substantial evidence that invasive mussels pose a health and safety risk.

Bill History

  1. 2026-06-09 California Legislative Information

    From committee: Do pass and re-refer to Com. on APPR. (Ayes 7. Noes 0.) (June 9). Re-referred to Com. on APPR.

  2. 2026-05-28 California Legislative Information

    From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on N.R. & W.

  3. 2026-05-13 California Legislative Information

    Referred to Com. on N.R. & W.

  4. 2026-05-05 California Legislative Information

    In Senate. Read first time. To Com. on RLS. for assignment.

  5. 2026-05-04 California Legislative Information

    Read third time. Passed. Ordered to the Senate. (Ayes 74. Noes 0. Page 4914.)

  6. 2026-04-30 California Legislative Information

    Read second time. Ordered to third reading.

  7. 2026-04-29 California Legislative Information

    From committee: Do pass. (Ayes 14. Noes 0.) (April 29).

  8. 2026-04-20 California Legislative Information

    Re-referred to Com. on APPR.

  9. 2026-04-16 California Legislative Information

    Read second time and amended.

  10. 2026-04-15 California Legislative Information

    From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 13. Noes 0.) (April 14).

  11. 2026-03-17 California Legislative Information

    Re-referred to Com. on W., P., & W.

  12. 2026-03-16 California Legislative Information

    From committee chair, with author's amendments: Amend, and re-refer to Com. on W., P., & W. Read second time and amended.

  13. 2026-03-16 California Legislative Information

    Referred to Com. on W., P., & W.

  14. 2026-02-13 California Legislative Information

    From printer. May be heard in committee March 15.

  15. 2026-02-12 California Legislative Information

    Read first time. To print.

Official Summary Text

AB 1894, as amended, Blanca Rubio.
Fish and wildlife: invasive mussels: imported water.
Existing law, until January 1, 2030, generally prohibits a person from possessing, importing, shipping, or transporting in the state, or from placing, planting, or causing to be placed or planted in any water within the state, invasive mussels, and authorizes the Director of Fish and Wildlife, or the director’s designee, to engage in various enforcement activities with regard to invasive mussels. Existing law, until January 1, 2030, requires a public or private agency that operates a water supply system to cooperate with the
department
Department of Fish and Wildlife
to implement measures to avoid infestation by invasive mussels and to control or eradicate any infestation that occurs in a water
supply system. Existing law requires any person, or federal, state, or local agency, district, or authority that owns or manages a reservoir, where specified activities are permitted, except as specified, to develop and implement a program designed to prevent the introduction of invasive mussel species, as provided. Existing law requires any entity that discovers invasive mussels within the state to immediately report the discovery to the
Department of Fish and Wildlife.
department.
This bill would prohibit a public agency from prohibiting imported water
deliveries, as defined,
deliveries
for groundwater
replenishment
replenishment, as defined,
due to invasive mussels
if the importation complies with a specified invasive mussel control plan and
unless there is substantial, documented evidence of a proven health and safety risk as a result of the invasive mussels.
The bill would include findings that changes proposed by this bill address a matter of statewide concern rather than a municipal affair and, therefore, apply to all cities and counties, including charter cities and charter counties.

Current Bill Text

Read the full stored bill text
Download Bill PDF