The Planning and Zoning Law requires a city or county to adopt a general plan for land use development that includes, among other things, a housing element. Existing law, commonly referred to as the Housing Element Law, prescribes requirements for a city's or county's preparation of, and compliance with, its housing element, and requires the Department of Housing and Community Development to review and determine whether the housing element substantially complies with the Housing Element Law, as specified. Existing law requires the housing element to include an analysis of potential and actual governmental constraints upon the maintenance, improvement, or development of housing for all income levels, including, among others, locally adopted ordinances that directly impact the cost and supply of residential development. Existing law also requires the analysis to demonstrate local efforts to remove governmental constraints that hinder the locality from meeting its share of the regional housing need. For adoption of the 7th and all subsequent revisions of the housing element, this bill would require the housing element to include, in addition to the above-described analysis, a potential and actual governmental constraints disclosure statement that contains, among other things, an identification of each new or amended potential or actual governmental constraint, or revision increasing the stringency of a governmental constraint, that was adopted after the due date of the previous housing element and before submittal of the current draft housing element to the department. By imposing new requirements upon local governments submitting a housing element, the bill would impose a state-mandated local program. This bill would make related findings and declarations. 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, including charter cities. This bill would incorporate additional changes to Section 65583 of the Government Code proposed by SB 340 and AB 650, to be operative only if this bill and either or both of those bills are enacted and this bill is enacted last. The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement. This bill would provide that no reimbursement is required by this act for a specified reason.
Bill statussignedall 5 stages cleared
Introduction
Feb 2025
Committee Review
Aug 2025
Assembly Passage
Jun 2025
Senate Passage
Sep 2025
Signed into Law
Oct 2025
Introduced Feb 13, 2025Signed Oct 10, 2025
Maddy AI version diff · 8 comparisons
What changed between versions
10/10/25 - Chaptered→AB610·4 edits
MODERATE
The diff shows the complete removal of the chaptered (enrolled) version of AB 610, which amended Section 65583 of the Government Code to add a governmental constraints disclosure statement requirement for the 7th and subsequent housing element revisions. The diff is truncated, so added content in the target version is not visible. The removed text included findings and declarations, the legislative counsel's digest, and the full statutory amendment requiring local governments to disclose new or anticipated housing-related constraints in their housing elements.
Scope change
The visible portion shows complete removal of the chaptered bill text. Because the diff is truncated and no added lines are visible, the scope change in the target version cannot be fully determined from the available data.
REQUIREMENT
Removed the requirement that for the 7th and subsequent housing element revisions, local governments must include a 'potential and actual governmental constraints disclosure statement' identifying each new or amended constraint adopted after the previous housing element due date and before submittal of the current draft.
Removed the requirement to identify any new or amended governmental constraint that the governing body can anticipate adopting during the first three years of the planning period, with 'anticipate adopting' defined by reference to Ralph M. Brown Act agenda items.
SCOPE
Removed the finding and declaration that the bill addresses a matter of statewide concern rather than a municipal affair, making it applicable to all cities including charter cities.
FISCAL
Removed the provision stating that no state reimbursement is required for the costs mandated by this act to local agencies.
The July 17 Senate amendment restructures the governmental constraints disclosure statement requirement in Section 65583(a)(5)(B), splitting it into two distinct categories: constraints already adopted between the previous element's due date and the current draft's submittal, and constraints the governing body can 'anticipate adopting' in the first three years. A new definition of 'anticipate adopting' ties the obligation to items appearing on a Brown Act agenda, and a savings clause clarifies that the disclosure requirement does not prohibit local governments from actually adopting constraints.
REQUIREMENT
The constraints disclosure statement (Section 65583(a)(5)(B)) is restructured. The old version required identification of (i) constraints adopted after the previous element's due date and (ii) constraints under consideration or proposed for adoption during the planning period. The new version requires (I) constraints adopted after the previous element's due date AND before submittal of the current draft to the department, and (II) constraints the governing body can anticipate adopting in the first three years.
A savings clause is added stating that the disclosure statement requirement shall not be construed to prohibit a local government from adopting, amending, or increasing the stringency of a governmental constraint regardless of whether it was included in the disclosure statement.
DEFINITION
A new definition of 'anticipate adopting' is added: it means the local government's legislative body identified in a Brown Act agenda, after the previous element's due date and before submittal of the current draft, an action to consider adopting, amending, or increasing the stringency of a governmental constraint.
SCOPE
The scope of the first disclosure category is narrowed by adding an upper time bound: constraints must have been adopted both after the previous housing element's due date AND before submittal of the current draft housing element to the department. Previously there was no explicit upper bound.
TECHNICAL
Minor corrections throughout: a duplicate 'during within' in the digest is fixed to 'within'; a stray 'process' word appears in Section 1(e) findings; 'provisions' is changed to 'provision' in Section 65583; page numbering shifts from 97 to 96.
This diff reflects the transition of AB 610 from its enrolled form to its chaptered (enacted) form after the Governor signed it into law on October 10, 2025. The changes are entirely formatting and certification-related: the Assembly and Senate passage language was replaced with the standard 'STATE OF CALIFORNIA AUTHENTICATED ELECTRONIC LEGICAL MATERIAL' header, a chapter number (494) was assigned, and the text was reformatted to a wider line width. No substantive policy content was altered.
TECHNICAL
The bill's header changed from the enrolled format (showing Assembly and Senate passage dates and clerk signatures) to the chaptered format showing 'STATE OF CALIFORNIA AUTHENTICATED ELECTRONIC LEGICAL MATERIAL' and Chapter 494.
Governor approval date of October 10, 2025 was added, confirming the bill became law on that date.
Page headers changed from 'AB 610' to 'Ch. 494' throughout the document, and text was reformatted to a wider line width consistent with the official chaptered publication format.
The transition from Amended Senate to Enrolled version of AB 610 reflects the standard California legislative enrollment process. The visible changes consist of removal of amendment history headers and document formatting (page numbers, session labels, digest block), with no substantive policy changes apparent in the visible portion of the diff. The enrolled version is the final formal copy sent to the Governor for signature.
TECHNICAL
Amendment history header lines removed (dates showing when the bill was amended in Senate and Assembly).
Session label 'california legislature 2025-26 regular session' and page number formatting removed as part of standard enrollment reformatting.
AB 610 was amended to add a coordination provision stating that it incorporates additional changes to Section 65583 of the Government Code proposed by SB 340 and AB 650, operative only if AB 610 is enacted last among the three bills. This is a standard legislative coordination mechanism to avoid conflicts when multiple bills amend the same statutory section. The remaining visible changes are re-pagination and formatting adjustments resulting from the added paragraph in the fiscal note.
TECHNICAL
Added a sentence to the fiscal note stating that the bill incorporates additional changes to Section 65583 of the Government Code proposed by SB 340 and AB 650, to be operative only if this bill and either or both of those bills are enacted and this bill is enacted last. This ensures that if all three bills pass, the combined amendments merge cleanly into a single version of Section 65583.
AB 610 was significantly narrowed in this amendment. The most consequential change is the complete removal of a prohibition that would have barred local governments from adopting new or more stringent housing-related governmental constraints within three years of their housing element being certified as substantially compliant. The bill now only requires a disclosure statement identifying such constraints, and even that requirement is limited to the seventh housing element cycle and all subsequent ones. The addition of a new Government Code section (65583.5) was also dropped entirely.
REQUIREMENT
The prohibition on local governments adopting new or more stringent governmental constraints within three years of housing element substantial compliance certification was completely removed. This was the bill's most significant enforcement mechanism.
Findings and declarations supporting the prohibition on adopting new constraints were removed, including language stating it is state policy that local governments should focus on removing existing constraints rather than adopting new ones not required by federal or state law.
SCOPE
The potential and actual governmental constraints disclosure statement requirement is now limited to the seventh and all subsequent revisions of the housing element, rather than applying to all housing element cycles as in the prior version.
The addition of a new section (Section 65583.5) to the Government Code was dropped. The bill now only amends Section 65583.
The Senate amendment to AB 610 makes three substantive policy changes: it adds a new requirement for local agencies to submit copies of any new or amended covered governmental constraints to the Department of Housing and Community Development within a specified timeframe; it softens the standard for when local governments may adopt new constraints by changing the requirement from having 'eliminated or mitigated' prior constraints to having 'addressed and, where appropriate and legally possible, removed' them; and it adds a clarifying definition tying the start of the three-year window to the date the housing element is found in substantial compliance.
ENFORCEMENT
Local agencies must now submit to the Department of Housing and Community Development a copy of any policy, standard, or ordinance that includes a covered potential or actual governmental constraint (or a more stringent revision) within a specified timeframe. This creates a new reporting obligation that did not exist in the Assembly version.
REQUIREMENT
The threshold for when local governments may adopt new constraints was lowered. The Assembly version required that the local government had 'completed all of the housing element program commitments to eliminate or mitigate covered governmental constraints.' The Senate version changes this to 'address and, where appropriate and legally possible, remove covered governmental constraints,' which is a less demanding standard and gives localities more flexibility in adopting new regulations.
DEFINITION
A new provision clarifies that the 'first three years of the planning period' referenced in the disclosure statement requirements begins on the date the local agency's housing element is considered to be in substantial compliance pursuant to Section 65585.03. This provides a concrete starting point for the three-year window.
The 'governmental constraints disclosure statement' was renamed to 'potential and actual governmental constraints disclosure statement,' aligning the terminology more closely with the statutory language used elsewhere in the Housing Element Law.
The amended version of AB 610 introduces a defined term 'covered governmental constraint' to narrow the scope of the prohibition on adopting new or more stringent constraints during the housing element planning period. It also adds a specific 3-year timeline tied to the date the housing element is found in substantial compliance, clarifying when the restriction expires. The legislative digest was expanded with additional context about existing housing element law and compliance determinations.
Scope change
The prohibition on adopting new constraints is now limited to 'covered governmental constraints' (a defined term) rather than all governmental constraints, and is time-limited to 3 years from substantial compliance certification. This narrows both the subject matter and duration of the restriction compared to the introduced version.
DEFINITION
The term 'governmental constraint' in the prohibition section was replaced with 'covered governmental constraint, as defined,' indicating a new defined term that likely narrows which constraints are subject to the adoption restriction.
TIMELINE
A specific 3-year period was added: the prohibition on adopting new or more stringent covered governmental constraints applies 'within 3 years from the date the housing element or amendment is considered in substantial compliance with the Housing Element Law.' This gives local governments a clear deadline after which they can adopt new constraints without the disclosure and mitigation requirements.
SCOPE
The legislative digest was substantially expanded to describe existing law on housing element preparation, substantial compliance determinations by HCD or courts, and how prior compliance findings can be superseded. This provides more legal context for the bill's operation.