Environment
No direct effect
Neutral — no direct effect identified.
Benefits
- No material direct effect identified.
Risks
- No material direct effect identified.
StateMichiganIn Committee
SB 1139: History and arts: other; history museum authorities act; create. Creates new act. TIE BAR WITH: SB 1140'26, SB 1141'26
Sylvia Santana
SB 1139 status: In Committee — referred to Committee on Government Operations (updated Sep 15, 2026).
Source
LegiScan
Confidence
High
Analysis basis
LegiScan full bill text
01
What this bill does
Official summary alongside an AI-generated read on where it stands and why.
Overall Score
67OUT OF 100
Score:67/100 civic fit
Risk:Low Risk
Impact:Moderate Impact 60/100
Constitutionality95%
Bipartisan50%
Public opinion50%
Bill summary
What changes
Creates a framework for counties to establish 'history museum authorities' to manage and fund history museums through a property tax levy.
Who is affected
County residents (via potential taxes and benefits) and non-profit history museum service providers in cities with over 500,000 residents.
Requirements and enforcement
Authorities must be established by the county board of commissioners, hold public meetings, perform annual audits, and follow strict contracting rules for any service providers.
Costs and funding
Property tax levy of up to 0.2 mills; administrative costs for conducting elections which are reimbursed by the museum services provider.
When it takes effect
Act takes effect contingent on passage of SB 1140 and SB 1141; tax votes cannot be held before January 1, 2027.
Potential benefits
Provides dedicated funding for history museums in exchange for guaranteed free resident admission, student programs, and senior services.
Risks and tradeoffs
Adds a new property tax burden; potential complexity in contracts if multiple museum service providers are involved.
What is still unknown
Number of counties that will choose to establish such an authority.
02
Impact analysis
✦ AI analysisModeled effects across six domains, estimated from bill text and comparable legislation.
Economy
Mixed / Neutral
45%
Benefits
- Provides stable revenue stream for history museums
- Supports potential operational sustainability of non-profits
- Enables investment in regional historical programming
Risks
- Increases property tax burden on county residents
- Adds compliance costs for museum services providers
- Requires reimbursement of election costs by providers
Society
Positive outlook
75%
Benefits
- Mandates free museum admission for county residents
- Guarantees educational programming for local students
- Promotes cultural accessibility for senior citizens
Risks
- Tax levy impacts affordability for property owners
- Services are tied specifically to museums in cities over 500k
- Limited to museums meeting specific ownership criteria
Technology Industry
No direct effect
Neutral — no direct effect identified.
Benefits
- No material direct effect identified.
Risks
- No material direct effect identified.
Civic Accountability
Positive outlook
80%
Benefits
- Requires open public meetings for authority business
- Mandates compliance with Freedom of Information Act
- Requires annual independent audits under state law
Risks
- Authority board members are appointed, not elected
- Authority may contract with multiple non-profits
- Risk of influence from non-profit service providers
Public Health & Safety
No direct effect
Neutral — no direct effect identified.
Benefits
- No material direct effect identified.
Risks
- No material direct effect identified.
03
How trustworthy & consequential it is
Sourcing already shown above, this is what the analysis found worth flagging.
Source
LegiScan
Official bill text or data from LegiScan.
Confidence
High
Information is complete and verified.
Analysis basis
LegiScan full bill text
Source used for this bill's analysis.
Source note
Increases property taxes on county residents if voters approve the levy.
Analysis scope
Economic impact depends on specific millage rates chosen by voters.
04
Where it stands
Official record- IntroducedComplete
- CommitteeCurrent
- Chamber votesUpcoming
- Final agreementUpcoming
- GovernorUpcoming
- EnactedUpcoming
05
How it affects your district
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06
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