HB 457: County Governance Modifications - Utah

Substitute #5 → Enrolled · 3 edits · Mar 26, 2026

MINOR

The bill updates the delegation of accounting services for counties under executive-council and council-manager forms of government, adding specific requirements for good management practices and budget preparation. It also clarifies the requirements for county surveyors to approve final plats for local entity boundary actions, including detailed graphical and informational standards. The effective date of the bill is set to May 6, 2026.

Scope change

The bill applies to counties operating under specific forms of government and to local entities seeking boundary plat approvals.

REQUIREMENT

Added requirements for county councils to delegate accounting services using good management practices and to ensure the selected entity prepares the tentative budget.

Expanded plat requirements to include specific graphical illustrations for various boundary actions and detailed information for tax and dispute resolution purposes.

TIMELINE

Set the bill's effective date to May 6, 2026.

Substitute #4 → Substitute #5 · 7 edits

MODERATE

The bill was renamed from 'Municipal Annexation Amendments' to 'County Governance Modifications' to reflect its broader scope. It now includes new provisions allowing counties to delegate accounting services to executives or managers. The automatic annexation rules for unincorporated islands were simplified by removing the requirement for a public hearing and consolidating notice procedures. Exemptions for automatic annexations were expanded, allowing larger counties to delegate the exemption power to municipalities. Additionally, the definition of 'rural real property' was updated to include portions of private property over 1,500 acres.

Scope change

The bill's scope expanded from solely modifying municipal annexation rules to also modifying county governance, specifically regarding the delegation of accounting services.

SCOPE

The bill title and long title were changed to 'County Governance Modifications' to include new sections on accounting services.

REQUIREMENT

New Section 4 was added to allow county councils to delegate accounting services to the county executive, manager, or department directors under specific conditions.

The requirement for a public hearing before automatic annexation of unincorporated islands in second-class counties was removed.

Notice procedures for automatic annexations were streamlined to require mailing notice to property owners and publishing on the Utah Public Notice Website, removing posting requirements.

ELIGIBILITY

Exemption powers for automatic annexations were restructured: counties with populations under 600,000 retain the power, while counties with 600,000 or more may delegate this power to municipalities.

DEFINITION

The definition of 'rural real property' was expanded to include portions of private real property that consist of more than 1,500 total acres.

TECHNICAL

Section 17-73-507 was updated to allow final plats to depict non-contiguous areas and to require a map or complete boundary information instead of just a graphical illustration.

Substitute #3 → Substitute #4 · 6 edits

MODERATE

The bill was revised to broaden its title and description, remove references to counties of the third class regarding urban growth plans, and add a requirement for public hearings before automatic annexations occur. The effective date was shortened from May 6, 2026, to May 6, 2025, and the list of amended code sections was streamlined to exclude the third-class county planning provisions.

Scope change

The bill's scope was narrowed by removing requirements for counties of the third class to include urban growth area elements in their general plans, while maintaining the focus on second-class county annexation rules.

TITLE

The bill title and long title were updated to remove 'County Growth Planning and Annexation Amendments' and replace it with 'Municipal Annexation Amendments' to reflect the removal of third-class county planning requirements.

SCOPE

The general description was changed to remove the requirement that certain counties of the third class include an urban growth area element in their general plan and impact facilities plan.

AFFECTED_SECTIONS

The list of amended Utah Code sections was updated to remove references to 10-20-404, 11-36a-301, and 17-79-403, which previously mandated planning requirements for third-class counties.

REQUIREMENT

A new requirement was added for counties of the second class to schedule and hold a public hearing regarding automatic annexations of unincorporated islands.

TIMELINE

The effective date of the bill was changed from May 6, 2026, to May 6, 2025, making the legislation effective one year earlier.

TECHNICAL

The effective date section was renumbered from Section 9 to Section 5, and the timestamp at the end of the document was updated.

Substitute #2 → Substitute #3 · 8 edits

MODERATE

This bill expands Utah's annexation and growth planning laws by adding new requirements for counties of the third class and modifying rules for unincorporated islands. It mandates that certain counties create 'urban reserve areas' for future growth, requires specific notice procedures for automatic annexations, and updates definitions to clarify what constitutes an annexation action and rural real property.

Scope change

The bill's scope expanded from only counties of the first and second classes to include counties of the third, fourth, fifth, and sixth classes for general planning requirements, and specifically targets 'metropolitan growth counties' (third class adjacent to first class) for new urban reserve area designations.

SCOPE

Added requirements for counties of the third, fourth, fifth, and sixth classes to include specific elements in their general plans and impact fee facilities plans related to urban growth and water demand.

REQUIREMENT

Created a new 'metropolitan growth county' category requiring the designation of 'urban reserve areas' to accommodate projected residential and employment growth.

Required counties of the second class to mail written notice and publish online notice to property owners at least 60 days before an automatic annexation takes effect.

Updated the criteria for 'unincorporated islands' to include conditions regarding public infrastructure presence and compliance with municipal codes.

Mandated that general plans for specified counties include a moderate income housing element meeting specific state requirements.

DEFINITION

Added new definitions for 'affected area', 'affected entity', 'annexation action', 'expansion area', 'rural real property', and 'urban development' to clarify planning and annexation processes.

ELIGIBILITY

Changed the population threshold for 'unincorporated islands' eligible for automatic annexation from 350,000 to 400,000 for counties of the second class.

TIMELINE

Adjusted the effective date for automatic annexations of unincorporated islands in counties of the second class to July 1, 2027, and set the exemption deadline to May 1, 2027.

Substitute #1 → Substitute #2 · 4 edits

MODERATE

This bill was significantly shortened by removing provisions related to county general planning and impact fee facilities. The remaining text focuses exclusively on automatic annexation rules for small 'unincorporated islands' and requirements for final plat maps, while deleting all specific mandates for third-class counties regarding urban growth areas and water conservation.

Scope change

The bill's scope was narrowed from affecting multiple county classes and planning elements to focusing solely on annexation mechanics and plat requirements for second-class counties.

REQUIREMENT

Deleted all requirements for third-class counties to include urban growth areas and impact facilities plans in their general plans.

Removed the new Section 17-79-409 that mandated specific population projections and urban reserve area designations for metropolitan growth counties.

Deleted the requirement for counties to include specific water conservation and infrastructure evaluations in their impact fee facilities plans.

Condensed the bill by removing the detailed text for general plan preparation in both municipal and county sections, leaving only the annexation and plat sections.

Introduced → Substitute #1 · 7 edits

MODERATE

The bill was expanded from a single provision on annexation to a comprehensive growth management package. It broadens the automatic annexation rules for small unincorporated areas, adds strict water conservation requirements for all municipalities and counties, allows non-contiguous areas to be annexed in a single plat, and creates a new category of 'metropolitan growth counties' that must plan for future urban expansion.

Scope change

The bill's scope expanded significantly from only affecting annexation in second-class counties to covering general planning, impact fees, and final plats for second, third, and first-class counties.

SCOPE

Expanded the bill to include amendments for counties of the second and third class, adding requirements for general planning and impact fee facilities plans.

ELIGIBILITY

Changed the automatic annexation threshold for unincorporated islands in second-class counties from 25 acres to 55 acres and increased the county population limit from no limit to 350,000.

REQUIREMENT

Added new requirements for unincorporated islands to be annexed to a municipality that provides them with water or sewer services.

Mandated that final plats for annexations may now depict non-contiguous areas, allowing scattered land to be annexed together.

Introduced new planning elements for general plans, including specific water conservation policies and sustainable landscaping standards.

Modified general plan requirements for third-class counties to include specific elements related to urban growth areas and water infrastructure capacity.

DEFINITION

Created a new definition for 'metropolitan growth counties' (third-class counties adjacent to first-class counties) requiring them to designate 'urban reserve areas' for future growth.

County Governance Modifications

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