New California laws taking effect October 1, 2025
25 laws take effect October 1, 2025.
Of the 1,834 bills enacted since 2025, 1,828 have an effective date and 6 don't yet (listed below). A law here takes effect that day by its main provisions; parts of a staggered act may take effect on other dates.
Updated Nov 4, 2026 at 7:53 p.m. EST.
Education (4)
AB 1255 · 2026 Regular SessionDerived
Pupil instruction: newcomer pupils: migrant education: migrant regions.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
AB 1438 · 2026 Regular SessionDerived
School finance: administrative employee-to-teacher ratio: Paradise Unified School District.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
AB 503 · 2026 Regular SessionDerived
School facilities: Civic Center Act: direct costs.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
AB 753 · 2026 Regular SessionDerived
Childcare: facility licensure: teacher requirements.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Taxes (4)
SB 302 · 2026 Regular SessionDerived
Personal Income Tax Law and Corporation Tax Law: exclusions: environmental credits.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
SB 711 · 2026 Regular SessionDerived
Taxation: federal conformity.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Parts of this act take effect on other dates.
SB 86 · 2026 Regular SessionDerived
California Alternative Energy and Advanced Transportation Financing Authority Act: sales and use tax exclusion.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Parts of this act take effect on other dates.
SB 87 · 2026 Regular SessionDerived
Sales and Use Tax Law: consumer designation: all-volunteer fire departments.
How we got this date
This act provides for a tax levy within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Climate (3)
AB 571 · 2026 Regular SessionDerived
California Environmental Quality Act: exemption: Gypsum Canyon Veterans Cemetery.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
AB 663 · 2026 Regular SessionDerived
Hydrofluorocarbon gases: sale and distribution prohibition: exemptions.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
SB 611 · 2026 Regular SessionDerived
Planning and zoning: community plans: review under the California Environmental Quality Act.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Budget (2)
AB 1533 · 2026 Regular SessionDerived
Claims against the state: appropriation.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
AB 985 · 2026 Regular SessionDerived
Chiquita Canyon Landfill: property tax reassessment and penalties.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Crime (2)
AB 406 · 2026 Regular SessionDerived
Employment: unlawful discrimination: victims of violence.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
SB 385 · 2026 Regular SessionDerived
Peace officers.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Healthcare (2)
SB 39 · 2026 Regular SessionDerived
Cosmetic safety: vaginal suppositories.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
SB 471 · 2026 Regular SessionDerived
Office of the Developmental Services Ombudsperson.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Elections (1)
SB 851 · 2026 Regular SessionDerived
Elections.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Traffic (1)
SB 359 · 2026 Regular SessionDerived
Use Fuel Tax Law: Diesel Fuel Tax Law: exempt bus operation.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Parts of this act take effect on other dates.
Wages (1)
SB 400 · 2026 Regular SessionDerived
Labor: elective compensation under the Inflation Reduction Act of 2022.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Other (5)
AB 1527 · 2026 Regular SessionDerived
Tribal gaming: compact ratification.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
AB 1532 · 2026 Regular SessionDerived
Public Utilities Commission.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
SB 227 · 2026 Regular SessionDerived
Green Empowerment Zone for the Northern Waterfront area of the County of Contra Costa.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
SB 47 · 2026 Regular SessionDerived
February 2025 bar exam: audit.
How we got this date
shall go into immediate effect
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
SB 864 · 2026 Regular SessionDerived
Tribal gaming: compact ratification.
How we got this date
This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect.
Signed by the Governor Oct 1, 2025 → takes effect on that day Oct 1, 2025
Enacted, but not yet dated (6)
These laws' texts tie their dates to something outside the legislative record (Contingent), or not enough is recorded yet to give one (Unresolved). They may take effect October 1, 2025 too; the record doesn't say.
Show all 6
- AB 929ContingentAbandoned endowment care cemeteries: County of Marin.Senate Bill 1312 of the 2025–26 Regular Session is enacted and becomes operative
- SB 246ContingentMedi-Cal: graduate medical education payments.Necessary federal approvals from the federal Centers for Medicare and Medicaid Services for graduate medical education payments, and no sooner than January 1, 2026
- SB 42ContingentPolitical Reform Act of 1974: public campaign financing: California Fair Elections Act of 2026.Approval by the voters at the November 3, 2026, statewide general election
- SB 484ContingentCoastal resources: coastal development permits: infill area categorical exclusion.Commission certifies the exclusion by a two-thirds vote of its appointed members
- SB 558ContingentImperial Valley Healthcare District: voting districts.Effective commencing with the next district election occurring after January 1, 2024
- SB 895ContingentCalifornia Science and Health Research Bond Act.Approval by the voters of the California Science and Health Research Bond Act