Photo of Mike Costlow
R Missouri House · District 108 On the 2026 ballot

Rep. Mike Costlow

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Total votes
0
all sessions
Attendance
-
of floor votes
With party
0%
of cast votes
Bipartisan score
0%
crosses aisle rarely
Sponsored
81
bills & resolutions
Committees
4
assignments
81 bills and resolutions

Sponsored bills

Total
81
Primary
50
Co-sponsor
31
This page
81
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Primary HB 3364
In committee · Missouri House · Lead sponsor
Creates new provisions for industrial utility users

Maddy summaryHB 3364 establishes new tariff rules for large industrial utility users. It requires electricity providers to charge customers with annual peak demand of 50+ megawatts (or 100+ megawatts for providers with over 250,000 customers) and water users exceeding 2 million gallons daily or 80% of system capacity based on their actual service costs. The bill mandates that rates reflect each customer's fair share of infrastructure costs, preventing other customer classes from bearing unreasonable costs from these large users. Utilities must adjust tariffs to ensure costs are distributed fairly and submit water service contracts for regulatory approval.

In committee Mar 30, 2026 0 co-sponsors
Primary HB 2562
In committee · Missouri House · Lead sponsor
Modifies exemptions to the sunshine law

Maddy summaryHB 2562 modifies Missouri's sunshine law by updating when government meetings and records can be closed to the public. It specifically requires public disclosure of final votes on personnel decisions (hiring/firing/promotion) within 72 hours after a meeting, while allowing closed discussions about individual employee performance. For legal cases, it mandates public disclosure of settlement amounts upon final resolution (unless a court orders otherwise), and requires real estate transaction records to be made public after execution. The bill directly affects local governments, school boards, and public officials managing sensitive records. It does not change existing public access to most government proceedings but clarifies specific disclosure timelines for defined exemptions.

In committee Mar 26, 2026 0 co-sponsors
Primary HB 3375
In committee · Missouri House · Lead sponsor
Modifies provisions relating to eminent domain

Maddy summaryHB 3375 modifies Missouri's eminent domain laws to provide additional protections for specific property owners. It defines "beginning farmers" (those with ≤10 years of farming experience), requires valuation based on "highest and best use" for agricultural properties, and establishes "heritage value" at 20% of fair market value for family-owned properties held for 50+ years. The bill also creates "homestead taking" protections for primary residences and restricts public utilities from condemning another utility provider's property unless it’s for a non-exclusive easement that doesn’t interfere with current use. These changes directly affect farmers, family-owned landholders, homeowners, and utility companies seeking to acquire land.

In committee Mar 25, 2026 0 co-sponsors
Co-sponsor HB 2559
Passed · Missouri House · Co-sponsor
Requires the general assembly to approve proposed administrative rules

Maddy summaryHB 2559 requires state agencies to obtain legislative approval before implementing new administrative rules that would cost over $250,000 annually for government, businesses, or individuals. Agencies must notify the Joint Committee on Administrative Rules and the full legislature, which must pass a concurrent resolution approving the rule before it takes effect. Rules not approved this way become invalid, with exceptions for federal compliance or funding requirements. This directly affects state agencies creating significant-cost rules and shifts authority to the legislature for final approval.

Passed Mar 23, 2026 1 co-sponsor
Co-sponsor HB 2498
Passed · Missouri House · Co-sponsor
Modifies provisions relating to the certification of a juvenile for trial as an adult

Maddy summaryHB 2498 modifies Missouri's procedures for handling fingerprints of juveniles arrested for serious offenses. It requires law enforcement to collect fingerprints for juveniles under 18 (not already certified as adults) arrested for offenses that would be felonies if committed by an adult, but ensures the juvenile's name is excluded from the central repository using special fingerprint cards. These fingerprints and a unique identifier are then sent to the central repository and the court without revealing the juvenile's name. The bill also specifies that juveniles over 15.5 years old accused of non-felony traffic violations (where juvenile court lacks jurisdiction) should not be fingerprinted unless certified as adults.

Passed Mar 12, 2026 1 co-sponsor
Co-sponsor HB 2807
In committee · Missouri House · Co-sponsor
Modifies certain provisions relating to the renewable energy

Maddy summaryHB 2807 requires Missouri electric utilities to source increasing percentages of electricity from renewable sources like wind and solar, starting at 2% in 2011 and rising to 15% by 2025, with at least 2% specifically from solar. It creates an exemption for large commercial customers (over 80MW load) who purchase renewable energy and retire certificates, allowing them to avoid utility compliance costs. The bill establishes rules for tracking renewable energy certificates (RECs) and limits annual rate increases from compliance costs to 1%. Utilities must meet these requirements for all power sold to Missouri consumers, including purchased electricity.

In committee Mar 11, 2026 1 co-sponsor
Co-sponsor HB 1743
In committee · Missouri House · Co-sponsor
Modifies provisions governing the seizure of property for tax delinquencies

Maddy summaryHB 1743 modifies tax collection rules by adding specific exemptions to property seizures for unpaid taxes. It protects primary residences (including farm properties held in LLCs used as homes) and farm-related personal property from seizure solely due to tax delinquency. The bill requires tax collectors to first attempt personal payment demands or leave written notices, and prohibits seizures before October 1 each year. These changes directly affect homeowners and farmers whose properties qualify for the new exemptions. The bill is currently pending in committee with no votes yet recorded.

In committee Mar 10, 2026 1 co-sponsor
Primary HB 1833
In committee · Missouri House · Lead sponsor
Creates provisions relating to an option to opt out of coverage under the Missouri consolidated health care plan and receive an annual stipend instead

Maddy summaryHB 1833 allows active Missouri state employees eligible for the consolidated health care plan to opt out of state coverage and receive an annual stipend instead. Employees must provide proof of separate health insurance coverage and make the election within 31 days of hire or during designated open enrollment periods. The stipend equals 50% of the state’s contribution toward the employee’s health coverage (not including dependents), is taxable, and applies only to medical coverage (not dental/vision). This policy change directly affects state employees enrolled in the health plan who choose this alternative.

In committee Mar 5, 2026 0 co-sponsors
Co-sponsor HB 2171
In committee · Missouri House · Co-sponsor
Establishes the "Motivational Boot Camp Incarceration Program" in the department of corrections and allows certain persons to be sentenced to the Program

Maddy summaryHB 2171 creates a two-year "Motivational Boot Camp Incarceration Program" within Missouri's Department of Corrections. It allows eligible individuals aged 17-21 with two prior nonviolent offenses to be sentenced to this program instead of jail or prison for a third nonviolent offense (excluding serious crimes like murder or rape). The program requires rigorous physical activity, counseling to address criminal behavior, written rules for participants, and medical clearance before enrollment. Successful completion results in the criminal conviction being expunged from the person's record, while failure leads to the original sentence being imposed. The program expires after six years unless the legislature reauthorizes it.

In committee Feb 27, 2026 1 co-sponsor
Primary HB 2311
In committee · Missouri House · Lead sponsor
Modifies provisions relating to the sexual offender registry

Maddy summaryHB 2311 modifies Missouri's sexual offender registry laws by updating age thresholds for certain offenses (e.g., changing "under 17" to "under 18" for statutory rape and child molestation). It specifies who must register (including those convicted of sexual offenses, child abuse, or equivalent federal crimes), requiring registration within three business days of adjudication or release. The bill establishes tiered registration periods: 15 years for Tier I offenders, 25 years for Tier II, and lifetime for Tier III, with potential reductions after 10 or 25 years of maintaining a clean record. This directly affects individuals convicted of specified sex offenses who reside in, work at, or attend school in Missouri.

In committee Feb 17, 2026 0 co-sponsors
Showing 41 to 50 of 81 bills
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