Back to California

AB-2032 • 2026

Fish and wildlife: golden mussels.

Fish and wildlife: golden mussels.

Agriculture
Passed Legislature

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

Sponsor
Ransom
Last action
2026-04-20
Official status
Re-referred to Com. on APPR.
Effective date
Not listed

Plain English Breakdown

The effectiveness and compliance with the guidelines are uncertain.

Golden Mussel Management

This law allows water supply agencies to manage golden mussels without certain permits and requires the Department of Fish and Wildlife to develop guidelines for controlling these invasive species.

What This Bill Does

  • Exempts water supply agencies from needing special permits when they are working on plans to control or remove golden mussels, provided they have submitted a control plan to the department.
  • Requires the Department of Fish and Wildlife to create voluntary guidance by April 1, 2027, for public and private agencies that operate water supply systems to manage golden mussel spread.
  • Encourages water supply agencies to follow these guidelines for controlling golden mussels in their systems.

Who It Names or Affects

  • Public or private agencies that operate water supply systems
  • The Department of Fish and Wildlife

Terms To Know

Restricted Species Permit
A special permit needed to handle certain animals, including golden mussels.
Control Plan
A plan made by water supply agencies to stop the spread of invasive species like golden mussels.

Limits and Unknowns

  • The bill does not specify what happens after April 1, 2030.
  • It is unclear how much funding will be provided for implementing these measures.
  • The effectiveness and compliance with the guidelines are uncertain.

Bill History

  1. 2026-04-20 California Legislative Information

    Re-referred to Com. on APPR.

  2. 2026-04-16 California Legislative Information

    Read second time and amended.

  3. 2026-04-15 California Legislative Information

    From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 7. Noes 0.) (April 14).

  4. 2026-04-14 California Legislative Information

    From committee: Do pass and re-refer to Com. on E.S & T.M. (Ayes 13. Noes 0.) (April 14). Re-referred to Com. on E.S & T.M.

  5. 2026-03-26 California Legislative Information

    (Pending re-refer to Com. on E.S. & T.M.)

  6. 2026-03-26 California Legislative Information

    Assembly Rule 56 suspended.

  7. 2026-03-23 California Legislative Information

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

  8. 2026-03-19 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.

  9. 2026-03-19 California Legislative Information

    Referred to Coms. on W., P., & W. and E.S & T.M.

  10. 2026-02-18 California Legislative Information

    From printer. May be heard in committee March 20.

  11. 2026-02-17 California Legislative Information

    Read first time. To print.

Official Summary Text

AB 2032, as amended, Ransom.
Fish and wildlife: golden mussels.
(1) 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, as defined. Existing law requires a public or private agency that operates a water supply system to cooperate with the Department of Fish and Wildlife to implement measures to avoid infestation by invasive mussels and to control or eradicate any infestation that may occur in a water supply system, and, if invasive mussels are detected, to prepare and implement a plan, as specified, to control or eradicate invasive mussels within the
system.
system (control
plan).
Existing law prohibits the importation, transportation, possession, or live release of specified wild animals, except under a revocable, nontransferable permit, known as a restricted species permit, issued by the department, in cooperation with the Department of Food and Agriculture, and only if certain requirements are met.
Existing law authorizes the department to issue permits, commonly known as scientific collecting permits, to take or possess any form of plant or animal life for scientific, educational, or propagation purposes.
This bill would exempt from the requirement to obtain a restricted species permit
for golden mussels
a public or private agency that operates a water supply system
and has submitted a control plan to the department
for maintenance and operational activities to control the spread of golden mussels in the water supply system, as specified.
The bill would provide that this exemption remains in effect for a particular public or private agency until the department determines the agency’s control plan does not meet the statutory requirements for control plans or approves the control plan.
This bill would require the department’s Invasive Species
Program, through the Golden Mussel Task Force convened by the department, to develop and adopt,
Program to develop,
by April 1, 2027,
best management practices
voluntary guidance
for public and private agencies that operate water supply systems to
control the spread of golden mussels, as specified, and would encourage those public and private agencies to comply with those best management practices.
develop effective control plans.
The bill would also require the department’s Invasive Species
Program, through the Golden Mussel Task Force,
Program
to adopt, by April 1, 2027, guidance for scientific research conducted by or for public and private agencies that operate water supply systems to control the spread of golden mussels, as
specified, and would encourage those private and agencies to comply with that guidance.
specified. The bill would authorize a public or private agency that operates a water supply system and does not have an approved control plan to submit to the department a streamlined project proposal for golden mussel scientific research, as specified, and would require those project proposals to comply with the department’s scientific research guidance.
This
The
bill would exempt
scientific research to control the spread of golden mussels conducted by or for public and private agencies that operate water supply systems
scientific research described in those project proposals
from scientific collecting permits
issued by the department if the public or private agency participates in the Golden Mussel Task Force, as that participation may be determined by the department.
and restricted species permits for golden mussels. The bill would provide that this exemption
terminates for a particular public or private agency upon the agency’s submission of a control plan to the department.
This bill would require the department to update the spatial distribution maps of golden mussel-infested water bodies posted on its internet website no less than quarterly based on monitoring and reported detections, as prescribed.
(2) Existing law requires every manufacturer of, importer of, or dealer in any pesticide, except as specified, to obtain a certificate of registration from the Department of Pesticide Regulation before the pesticide is offered for sale. Existing law requires the Director of Pesticide Regulation to endeavor to eliminate from use in the state specified pesticides, and in carrying out this responsibility, to develop an orderly program for the continuous evaluation of all pesticides actually registered, as specified.
This bill would require the department to expedite, as prescribed, the evaluation of pesticides that are a chemical
treatment effective for the prevention, mitigation, control, or eradication of golden mussels in a water supply system operated by a public or private agency.
(3)
Under
Under
existing law, the State Water Resources Control Board and the 9 California regional water quality control boards regulate water quality and prescribe waste discharge requirements in accordance with the Porter-Cologne Water Quality Control Act and the national pollutant discharge elimination system permit program.
This bill would require the state board and regional boards to expedite, as prescribed, the processing of any national pollutant discharge elimination system permit or permit modification to the extent allowable under state and federal law if the permit or permit modification is submitted by a public or private agency that operates a water supply system in order to control the spread of golden mussels.
This bill would require, in response to an invasive species threat, including, but not limited to, the threat of golden mussels, the department, state board, and regional boards to work with state and local agencies in order to quickly and efficiently respond to the threat. The bill would require the department and state board to identify any tools available to assist a state or local agency in rapidly responding to the invasive species threat and to help identify any existing processes that allow for the rapid use of any tool that could be used to address the invasive species threat and enables a streamlined or faster administrative or procedural process. The bill would require the state board, if necessary, to help coordinate efforts between the regional boards in response to a threat of an invasive species.
(3) This bill would declare that it is to take effect immediately as an urgency statute.

Current Bill Text

Read the full stored bill text
Download Bill PDF