AB 1772: Fish and wildlife: invasive species: invasive mussels.
The bill aims to improve the prevention and control of invasive mussels in California's water supply systems. It requires water supply system operators to update their plans to address all invasive mussel species present in their systems as of January 1, 2026. The plans must be completed within 180 days of detection of a new invasive species. The bill also requires operators to minimize or eliminate the spread of invasive mussels. Additionally, it revises the definition of invasive mussels to include any nonnative biofouling mussel. The bill establishes a voluntary framework to prevent the overland spread of invasive mussels through the conveyance of watercraft overland. This framework includes minimum standards for watercraft inspection, decontamination, and quarantine, as well as a banding program to confirm the inspection, decontamination, or quarantine status of a watercraft.
| Aug. 13, 2026 | In committee: Held under submission. |
| Aug. 03, 2026 | In committee: Referred to APPR. suspense file. |
| Jul. 01, 2026 | From committee: Do pass and re-refer to Com. on APPR. (Ayes 13. Noes 0.) (June 30). Re-referred to Com. on APPR. |
| Jun. 25, 2026 | From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on JUD. |
| Jun. 24, 2026 | From committee: Do pass and re-refer to Com. on JUD. (Ayes 6. Noes 0.) (June 23). Re-referred to Com. on JUD. |
| Amended IN Senate June 25, 2026 |
| Amended IN Senate June 15, 2026 |
| Amended IN Assembly April 27, 2026 |
| Amended IN Assembly March 23, 2026 |
| Introduced by Assembly Member Papan (Principal coauthor: Assembly Member Ransom) (Coauthors: Assembly Members Ávila Farías, Bains, Boerner, Caloza, Jeff Gonzalez, Hart, Celeste Rodriguez, Rogers, and Blanca Rubio) |
February 09, 2026 |
LEGISLATIVE COUNSEL'S DIGEST
The people of the State of California do enact as follows:
SECTION 1.
(a) The Legislature finds and declares all of the following:SEC. 2.
Section 2301 of the Fish and Game Code is amended to read:2301.
(a) (1) Except as authorized by the department, a person shall not possess, import, ship, or transport in the state, or place, plant, or cause to be placed or planted in any water within the state, invasive mussels.SEC. 3.
Section 2301.1 is added to the Fish and Game Code, to read:2301.1.
(a) (1) Inspection and decontamination of conveyances for aquatic invasive species in the state shall be performed in accordance with uniform standards and procedures that the department shall establish for decontaminating conveyances and the treatment and disposal of water, organism, and organic materials yielded from the decontamination process. These standards and procedures shall be effective at removing or destroying invasive mussels and shall be performed in a manner that ensures no viable invasive mussels remain on or in the conveyance before launch.SEC. 4.
Section 2301.2 is added to the Fish and Game Code, to read:2301.2.
(a) A licensed inspection and decontamination station may issue an inspection, decontamination, or quarantine certificate to the owner or person in possession of a conveyance that has been inspected pursuant to Section 2301. The certificate shall reflect all of the following:SEC. 5.
Section 2301.3 is added to the Fish and Game Code, to read:2301.3.
(a) The department shall have the sole and exclusive authority within the state for developing and implementing a statewide program for the inspection and decontamination of conveyances for aquatic invasive species in accordance with this chapter. The inspection and decontamination program shall consist of licensed inspection and decontamination stations with qualified inspectors that inspect and decontaminate conveyances and issue certificates of compliance to conveyances that meet the requirements of this chapter or notices of noncompliance to conveyances that do not meet the requirements of this chapter.SEC. 6.
Section 2301.4 is added to the Fish and Game Code, to read:2301.4.
(a) To qualify as a qualified inspector, an inspector shall pass a qualification test administered by the department, in addition to meeting any minimum experience and training criteria established by the department.SEC. 7.
Section 2301.6 is added to the Fish and Game Code, to read:2301.6.
(a) The department shall use the Regional Watercraft Inspection and Decontamination (WID) Data Sharing System managed by the Colorado Parks and Wildlife Division of the Colorado Department of Natural Resources for tracking the movement of conveyances, equipment, and other vectors among California waterbodies.SEC. 8.
Section 2301.7 is added to the Fish and Game Code, to read:2301.7.
(a) The department shall encourage public or private agencies that operate a water supply system to enter into reciprocity agreements with other agencies to allow the launch of conveyances without quarantine or decontamination for conveyances moving between waterbodies operated by those agencies. Participation by a public or private agency in any reciprocity agreement is voluntary.SEC. 9.
Section 2303 of the Fish and Game Code is amended to read:2303.
For purposes of this chapter, the following definitions apply:SEC. 10.
Chapter 3.6 (commencing with Section 2305) is added to Division 3 of the Fish and Game Code, to read:CHAPTER 3.6. Nonmotorized Vessel Invasive Mussel Infestation Prevention Fee
2305.
(a) (1) On or before January 1, 2028, the department shall collect, in addition to any other fee imposed under existing law, an invasive mussel infestation prevention fee from each nonmotorized vessel owner for each nonmotorized vessel launched into waters of the state.2306.
(a) Moneys deposited into the Nonmotorized Vessel Invasive Mussel Infestation Prevention Account pursuant to Section 2305 shall be available, upon appropriation by the Legislature, for the following purposes:2307.
For purposes of this chapter, the following definitions apply:SEC. 11.
No reimbursement is required by this act pursuant to Section 6 of Article XIII B of the California Constitution because the only costs that may be incurred by a local agency or school district will be incurred because this act creates a new crime or infraction, eliminates a crime or infraction, or changes the penalty for a crime or infraction, within the meaning of Section 17556 of the Government Code, or changes the definition of a crime within the meaning of Section 6 of Article XIII B of the California Constitution.SEC. 12.
The Legislature finds and declares that Section 7 of this act, which adds Section 2301.6 to the Fish and Game Code, imposes a limitation on the public’s right of access to the meetings of public bodies or the writings of public officials and agencies within the meaning of Section 3 of Article I of the California Constitution. Pursuant to that constitutional provision, the Legislature makes the following findings to demonstrate the interest protected by this limitation and the need for protecting that interest: