Photo of Mike Zimmer
D Iowa Senate · District 35 On the 2026 ballot

Sen. Mike Zimmer

Compare
Total votes
586
all sessions
Attendance
98%
12 missed
Near the chamber average
With party
94%
of cast votes
Lower than 96% of chamber peers
Bipartisan score
3%
crosses aisle rarely
Higher than 90% of chamber peers
Sponsored
53
bills & resolutions
Near the chamber average
Committees
5
assignments
53 bills and resolutions

Sponsored bills

Total
53
Primary
53
Co-sponsor
0
This page
53
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Primary SF 559
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to speech language pathologist assistants and the medical assistance program, and including effective date provisions.

Maddy summarySF 559 would allow speech language pathologist assistants (SLPAs) working under licensed speech pathologists to be reimbursed for services provided to medical assistance program recipients (Iowa's Medicaid program). The bill requires Iowa's Department of Health and Human Services (HHS) to adopt rules enabling this reimbursement and to seek federal approval via a waiver or amendment to Medicare/Medicaid rules. This change would directly affect SLPAs and medical assistance recipients by expanding covered services, but only takes effect after HHS receives federal approval. The bill does not change current reimbursement for licensed speech pathologists.

In committee Mar 10, 2025 0 co-sponsors
Primary SF 556
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to eligibility requirements for pregnant women, postpartum women, and infants under the special supplemental nutrition program for women, infants, and children.

Maddy summaryThis bill (SF 556) seeks to expand continuous eligibility under Iowa's WIC program for pregnant women, postpartum women, and infants whose family income is at or below 375% of the federal poverty level. It requires Iowa's health department to request a federal waiver by August 2025 to provide continuous coverage during pregnancy (instead of periodic renewals), and 12 months of continuous postpartum and infant eligibility. If federal approval is denied, Iowa must report the costs by December 2025 and could fund the expanded eligibility starting July 2026 using state funds, if the legislature appropriates money. The policy directly affects low-income families seeking nutrition support during pregnancy and early childhood.

In committee Mar 10, 2025 0 co-sponsors
Primary SF 485
In committee · Iowa Senate · Lead sponsor
A bill for an act establishing requirements related to nonpublic schools that receive tuition payments from parents or guardians whose students are participating in the education savings account program.

Maddy summarySF 485 requires nonpublic schools receiving tuition payments through Iowa's education savings account program to meet specific standards. These schools must follow public school board accountability rules, submit required data reports, maintain accreditation like public schools, and comply with teacher licensing requirements. The bill modifies the definition of "qualified educational expenses" to include these new requirements for participating nonpublic schools. It also removes a previous provision that prevented the state from requiring schools to adjust their educational programs to receive payments.

In committee Mar 4, 2025 0 co-sponsors
Primary SF 440
In committee · Iowa Senate · Lead sponsor
A bill for an act imposing fines for hazardous conditions caused by a person having control over a hazardous substance, providing penalties, and making appropriations.

Maddy summarySF 440 requires individuals or entities controlling hazardous substances to pay a 10% fine on top of existing costs for hazardous conditions they cause. This fine applies when someone is already liable for cleanup or damages under current law. Money collected from the fine goes into the natural resources account, which funds state parks, wildlife habitats, forest management, water trail improvements, and conservation education programs. The bill directly affects businesses or individuals managing hazardous materials that create unsafe conditions. It creates a new financial penalty while directing revenue toward environmental conservation projects.

In committee Mar 3, 2025 0 co-sponsors
Primary SF 439
In committee · Iowa Senate · Lead sponsor
A bill for an act allowing cities to certify taxes for a general fund levy for libraries.

Maddy summarySF 439 allows Iowa cities to levy a tax of up to 27 cents per $1,000 in property value to fund public libraries, directly affecting city residents who vote on the tax. The tax requires voter approval through a petition and election process: a majority must approve it at a regular city election, and it can be removed the same way. This bill reestablishes a library funding mechanism eliminated by a prior law (HF 718), restoring the specific tax rate and voter approval requirements that existed before that change. The tax would be part of a city's general fund levy, supporting library operations and services.

In committee Mar 3, 2025 0 co-sponsors
Primary SF 434
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to the creation of a child care solutions fund, and making an appropriation.

Maddy summarySF 434 creates a state child care solutions fund within Iowa's treasury, controlled by the Department of Health and Human Services (HHS). The fund uses $6 million in state appropriations (for FY 2025-2026) plus interest and private donations to provide a 2:1 state match for communities that secure private investment to increase child care worker wages. This directly affects child care providers and workers in designated geographic areas ("communities"), requiring communities to raise private funds to qualify for state matching dollars. HHS must track and report annually on how funds are used, including wages increased, workers retained or hired, and new child care slots created.

In committee Mar 3, 2025 0 co-sponsors
Primary SF 454
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to standards for determination of loss or permanent impairment for purposes of permanent partial disability under workers’ compensation and including applicability provisions.

Maddy summaryThis Iowa bill (SF 454) updates how workers' compensation claims for permanent partial disability are calculated. It requires using the most recent annual update to the American Medical Association's impairment guides (currently the 2024 update to the sixth edition) instead of the commissioner's rule-based adoption of older versions. The change directly affects workers injured on the job who seek permanent partial disability benefits, ensuring their impairment percentage is determined solely by the latest medical guidelines. It also prohibits using lay testimony or agency expertise in specific disability evaluations under these guidelines. The policy applies to all claims filed after the bill's effective date.

In committee Feb 27, 2025 0 co-sponsors
Primary SF 455
In committee · Iowa Senate · Lead sponsor
A bill for an act requiring certain weekly workers’ compensation benefits to be calculated by including an employee’s overtime and premium pay, and to include an annual cost-of-living adjustment.

Maddy summaryThis bill changes how Iowa calculates workers' compensation benefits for injured workers. It requires including overtime and premium pay (like shift differentials) in the weekly earnings calculation - currently excluded under law - and adds an annual cost-of-living adjustment tied to Social Security’s disability benefit increase. The change directly affects hourly, shift, and overtime workers, as their benefits will now reflect higher average earnings. The annual adjustment applies specifically to permanent total disability and death benefits, not all compensation. This policy update modifies existing calculation methods without altering benefit eligibility.

In committee Feb 27, 2025 0 co-sponsors
Primary SF 456
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to the choice of doctor to treat injured employees under workers’ compensation laws and including effective date and applicability provisions.

Maddy summaryThis bill (SF 456) gives Iowa workers injured on the job more control over choosing their treating physician under workers' compensation. It allows employees to predesignate a primary care doctor (who has treated them before and is within 60 miles of work) to handle their injury, and requires employers to inform workers of this right. If employers fail to provide this notice, workers can choose any doctor at the employer’s expense. Disputes over doctor choices must be resolved by the workers’ compensation commissioner within 10-14 days, with options for phone or in-person hearings.

In committee Feb 27, 2025 0 co-sponsors
Primary SJR 8
In committee · Iowa Senate · Lead sponsor
A joint resolution proposing an amendment to the Constitution of the State of Iowa relating to citizen initiatives to amend the Constitution of the State of Iowa.

Maddy summaryThis bill proposes adding new constitutional provisions to Iowa that would allow citizens to directly propose and vote on constitutional amendments through initiatives. To qualify, a petition must collect signatures from 10% of voters who cast ballots for governor in the last election, including signatures from at least half of Iowa's counties (5% per county). The proposal requires the secretary of state to submit the amendment to voters at the next general election 125+ days after petition submission, alongside balanced 300-word arguments for and against it. It also restricts initiatives from changing tax classifications, creating monopolies, or specifying tax rates, requiring a "double question" ballot if such restrictions are violated.

In committee Feb 26, 2025 0 co-sponsors
Showing 31 to 40 of 53 bills
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