Maddy summaryHB 3386 creates the "Natural Resources Protection Fund" in the state treasury to hold pollution-related fees, including air and water permit fees, and new 5% of electric power sales tax revenue. It designates specific subaccounts for air pollution control (funded permanently by the tax transfer starting July 2027) and water pollution administration. The bill changes how unspent funds are handled: balances exceeding prior collections no longer revert to general revenue after 2027, and all interest accrues to the fund. These funds, subject to legislative appropriation, directly support the Department of Natural Resources' pollution control programs and enforcement under relevant statutes.

Rep. Colin Wellenkamp
Sponsored bills
Maddy summaryHB 2664 establishes the "MO GIVES Program" to provide Missouri National Guard members who donate organs with guaranteed paid leave during their donation process. The program covers up to 45 days of paid status (extendable if medically necessary), exempts members from using personal leave, and provides per diem and housing allowances based on rank and location. To qualify, members must be in Troop Program Unit or Individual Ready Reserve status, in good standing, and either lack employer donor leave or choose not to use it. Benefits are funded through a dedicated "MO GIVES Fund" created in the state treasury, which can accept private or federal contributions and retains unspent funds at biennium end.
Maddy summaryHB 3071 requires property owners, sellers, landlords, or transferors to disclose in writing if a property was previously contaminated with radioactive or hazardous material, but only if they have official knowledge from a government agency. This affects anyone buying, leasing, or transferring property, with failure to disclose constituting a class A misdemeanor. The bill also mandates that owners must inform tenants if a government agency requests testing for contamination and requires state agencies to notify residents of contamination at residential properties within 30 days. Key provisions focus on written disclosure obligations, penalties for non-disclosure, and tenant rights to terminate leases without cost if contamination was knowingly hidden. The bill is currently in early legislative stages (introduced January 2026).
Maddy summaryHB 1731 creates a state-regulated rebate program for homeowners and businesses installing solar energy systems paired with energy storage. It requires electrical corporations to offer per-watt rebates (ranging from $2.00 to $0.25 per watt) based on installation dates between 2026 and 2032, with decreasing amounts over time. To qualify, customers must install a "smart inverter" (safety-compliant solar inverter), add energy storage, and transfer renewable energy credits for 10 years. The bill caps annual and total rebate costs for utilities based on their customer size (e.g., large utilities capped at $5.6 million annually) and allows utilities to recover rebate costs through rate adjustments.
Maddy summaryHB 1735 creates a tax credit for homeowners and developers renovating or building properties in designated National Register historic districts. It provides a 15% credit against Missouri state income tax (up to $40,000 per new residence) for eligible costs like renovations, construction, or site preparation, excluding costs covered by other grants. To qualify, properties must be owner-occupied or for sale at market rate, at least 40 years old, located in areas with median household income below 90% but above 70% of regional averages, and not in flood zones. The credit excludes costs for properties replacing historic structures or in distressed communities, and requires properties to be in designated historic districts.
Maddy summaryHB 2740 creates a governance board at the University of Missouri to oversee and report on research using radioisotopes for diagnosing and treating rare pediatric diseases (affecting fewer than 200,000 children under 18 in the U.S.). The board, including university medical representatives, legislative appointees, a patient advocate, and an industry partner, must submit annual public reports to Missouri lawmakers by December 31 each year detailing completed research projects, outcomes, funding used, and legislative recommendations. This bill directly affects the University of Missouri system, patient advocates, and the Missouri legislature through its reporting requirements. The board’s duties expire on June 30, 2030.
Maddy summaryHB 1624 requires seed permit applicants and nursery dealers in Missouri to include an affidavit stating they will not knowingly sell certain nonnative invasive plants as part of their permit or registration application. The affidavit specifically prohibits the sale of climbing euonymus, Japanese honeysuckle, Sericea lespedeza, and Perilla mint after January 1, 2027, and burning bush or Callery pear after January 1, 2029. This requirement is mandatory for obtaining or renewing a seed permit or nursery dealer registration, directly affecting nurseries and seed sellers who must comply to operate legally. The bill does not impose direct penalties but ties permit approval to adherence with these plant sale restrictions.
Maddy summaryHB 1736 modifies county sales tax rules for park funds to allow stormwater management projects within parks. It permits counties to use 50% of their allocated tax revenue for stormwater projects that either acquire park land/greenways or enhance natural park features without reducing park benefits. This affects counties and municipalities receiving these funds, which must still align with park purposes. The bill expands existing park funding uses without changing overall tax allocation percentages.
Maddy summaryHB 3193 phases out single-use plastic products at Missouri State Parks and Historic Sites by requiring park concessionaires (like food vendors and shops) to stop selling specific items by 2028. Beginning January 1, 2028, vendors cannot sell single-use plastic bags, bottled water, or polystyrene foam containers (such as cups and food trays), though medical packaging and emergency use are exempt. The bill mandates concession contracts to prioritize non-plastic alternatives starting in 2027, provided they meet health and safety standards. It explicitly excludes items like produce bags, prescription containers, and medical packaging from the ban.
Maddy summaryHB 2142 modifies Missouri's tax credit program for motion media productions (like films, TV shows, video games, and VR content) by increasing the base tax credit rate to 20% of qualifying expenses and adding up to 5% more for specific criteria, such as filming in Missouri, hiring Missouri residents, or promoting tourism. It directly affects production companies filming in Missouri that meet defined project size and content requirements (excluding news, ads, or political content). Key provisions include annual spending caps ($8 million/year for film/series through 2026, rising to $16 million/year after 2026), mandatory employment of Missouri residents/veterans based on project size, and requirements for promotional materials. The bill aims to incentivize local production while ensuring credits are tied to economic impact in Missouri.