Missouri House
Mike Costlow
Republican. House, district 108.
Emailmike.costlow@house.mo.gov
contactOfficial recordhttps://house.mo.gov/MemberDetails.aspx?district=108
officialBills they sponsored
50 bills sponsored this session
Modifies Supreme Court Rule 33.01 relating to conditions of release from custody in criminal proceedingsHB 3481 · this session · introduced Feb 26, 2026
05/15/2026 - Referred: Emerging Issues(H)Modifies provisions relating to eminent domainHB 3375 · this session · introduced Feb 23, 2026
03/25/2026 - Public Hearing Completed (H)Creates new provisions for industrial utility usersHB 3364 · this session · introduced Feb 19, 2026
03/30/2026 - Public Hearing Completed (H)Creates provisions for detachment from a water district for certain customers in certain circumstancesHB 3351 · this session · introduced Feb 18, 2026
04/23/2026 - Reported Do Pass (H)Establishes provisions regulating the display of flags at public buildingsHB 3315 · this session · introduced Feb 16, 2026
05/15/2026 - Referred: Emerging Issues(H)Establishes the "Motivational Boot Camp Incarceration Program" in the department of corrections and allows certain persons to be sentenced to the ProgramHB 3292 · this session · introduced Feb 12, 2026
04/09/2026 - Reported Do Pass (H)Creates the Manufacturing Opportunity Zones Act for large manufacturing developments with access to transportation and proximity to electricity, gas, and waterHB 3214 · this session · introduced Feb 4, 2026
05/15/2026 - Referred: Emerging Issues(H)Establishes the Missouri declaration and bylaws modernization actHB 3176 · this session · introduced Feb 3, 2026
04/08/2026 - Public Hearing Completed (H)Allows election authorities to publish electronic voting records on the election authority's websiteHB 3126 · this session · introduced Jan 28, 2026
05/15/2026 - Referred: Emerging Issues(H)Provides that the court shall not order a parent to pay child support to the other parent for reasonable or necessary expenses of the child if the parents are awarded equal time with the childHB 3110 · this session · introduced Jan 28, 2026
05/15/2026 - Referred: Emerging Issues(H)Establishes the offense of impeding, threatening, or harassing a first responderHB 3100 · this session · introduced Jan 27, 2026
05/15/2026 - Referred: Emerging Issues(H)Places restrictions on political subdivisions and homeowners' associations with respect to prohibitions against ownership or pasturing of non-nuisance domesticated animals for consumptionHB 2858 · this session · introduced Jan 7, 2026
05/15/2026 - Referred: Emerging Issues(H)Enacts provisions governing United States founding documents displayed in public schoolsHB 2857 · this session · introduced Jan 7, 2026
05/15/2026 - Referred: Emerging Issues(H)Establishes the offense of permitting, encouraging, aiding, or causing a minor to commit an offenseHB 2808 · this session · introduced Jan 7, 2026
04/22/2026 - Reported Do Pass (H)Establishes programs for funding energy infrastructure projects.HB 2661 · this session · introduced Jan 5, 2026
05/15/2026 - Referred: Emerging Issues(H)Show all 50
Modifies provisions relating to additional protections to bear armsHB 2660 · this session · introduced Jan 5, 2026
05/15/2026 - Referred: Emerging Issues(H)Establishes the "Missouri Statewide Mechanical Contractors Licensing Act"HB 2659 · this session · introduced Jan 5, 2026
05/15/2026 - Referred: Emerging Issues(H)Modifies provisions relating to electronic communicationsHB 2658 · this session · introduced Jan 5, 2026
04/08/2026 - Second read and referred: General Laws(S)Modifies certain provisions relating to the renewable energyHB 2657 · this session · introduced Jan 5, 2026
05/15/2026 - Referred: Emerging Issues(H)Modifies exemptions to the sunshine lawHB 2562 · this session · introduced Dec 22, 2025
03/26/2026 - Referred: Local Government(H)Modifies provisions governing income exempt from earnings taxHB 2561 · this session · introduced Dec 22, 2025
05/15/2026 - Referred: Emerging Issues(H)Establishes the "Act Against Abusive Website Access Litigation"HB 2312 · this session · introduced Dec 9, 2025
This Bill Replaced with a Substitute Bill - Check Primary Bill - HB 1694Modifies provisions relating to the sexual offender registryHB 2311 · this session · introduced Dec 9, 2025
02/17/2026 - Public Hearing Completed (H)Proposes a constitutional amendment to assert the right of parents to participate in and direct the education of their children free from government interferenceHJR 114 · this session · introduced Dec 1, 2025
01/08/2026 - Referred: Elementary and Secondary Education(H)Proposes a constitutional amendment granting homestead and personal property tax exemptions to certain veterans proportional to the veteran's disability ratingHJR 113 · this session · introduced Dec 1, 2025
05/15/2026 - Referred: Emerging Issues(H)Creates provisions relating to an option to opt out of coverage under the Missouri consolidated health care plan and receive an annual stipend insteadHB 1833 · this session · introduced Dec 1, 2025
03/05/2026 - Public Hearing Completed (H)Modifies provisions relating to firearm suppressorsHB 1730 · this session · introduced Dec 1, 2025
05/04/2026 - Public Hearing Held (S)Establishes the "Defend the Guard Act"HB 1729 · this session · introduced Dec 1, 2025
05/15/2026 - Referred: Emerging Issues(H)Modifies provisions governing city-county library boards of trustees in St. Charles CountyHB 1728 · this session · introduced Dec 1, 2025
04/23/2026 - Reported Do Pass (H)Modifies provisions relating to unlawful discriminatory practicesHB 1727 · this session · introduced Dec 1, 2025
05/15/2026 - Referred: Emerging Issues(H)Requires every school district to comply with enhanced safety and security standardsHB 1726 · this session · introduced Dec 1, 2025
05/15/2026 - Referred: Emerging Issues(H)Modifies provisions relating to transportation network companies and establishes the offense of impersonating a transportation network company driverHB 1725 · this session · introduced Dec 1, 2025
05/15/2026 - Referred: Emerging Issues(H)Exempts certain salvage title applicants from examination requirementsHB 1724 · this session · introduced Dec 1, 2025
05/15/2026 - Referred: Emerging Issues(H)Modifies the age of consentHB 1723 · this session · introduced Dec 1, 2025
05/15/2026 - Referred: Emerging Issues(H)Authorizes a transient guest tax for the promotion of tourism in any municipality, upon voter approvalHB 1594 · this session · introduced Feb 28, 2025
05/15/2025 - Referred: Emerging Issues(H)Modifies provisions relating to transportation network companies and establishes the offense of impersonating a transportation network company driverHB 1593 · this session · introduced Feb 28, 2025
05/15/2025 - Referred: Emerging Issues(H)Modifies provisions relating to the sexual offender registryHB 1592 · this session · introduced Feb 28, 2025
05/15/2025 - Referred: Emerging Issues(H)Modifies provisions relating to unlawful discriminatory practicesHB 1558 · this session · introduced Feb 27, 2025
05/15/2025 - Referred: Emerging Issues(H)Adds provisions relating to the offense of stealingHB 1557 · this session · introduced Feb 27, 2025
05/15/2025 - Referred: Emerging Issues(H)Modifies the age of consentHB 1471 · this session · introduced Feb 26, 2025
05/15/2025 - Referred: Emerging Issues(H)Creates provisions relating to an option to opt out of coverage under the Missouri consolidated health care plan and receive an annual stipend insteadHB 1444 · this session · introduced Feb 25, 2025
04/16/2025 - Public Hearing Completed (H)Modifies provisions relating to certain convention and sports facility authoritiesHB 1229 · this session · introduced Feb 6, 2025
04/16/2025 - Referred: Rules - Administrative(H)Establishes the "Defend the Guard Act"HB 1228 · this session · introduced Feb 6, 2025
05/15/2025 - Referred: Emerging Issues(H)Proposes a constitutional amendment to assert the right of parents to participate in and direct the education of their children free from government interferenceHJR 81 · this session · introduced Feb 4, 2025
02/13/2025 - Referred: Elementary and Secondary Education(H)Enacts the "Missouri Homeowners' Association Act"HB 1177 · this session · introduced Feb 4, 2025
05/15/2025 - Referred: Emerging Issues(H)Modifies provisions for underground facilities notification requirementsHB 1002 · this session · introduced Jan 22, 2025
05/15/2025 - Referred: Emerging Issues(H)Proposes a constitutional amendment granting homestead and personal property tax exemptions to certain veterans proportional to the veteran's disability ratingHJR 64 · this session · introduced Jan 15, 2025
05/15/2025 - Referred: Emerging Issues(H)Requires every school district to comply with enhanced safety and security standardsHB 549 · this session · introduced Dec 13, 2024
05/15/2025 - Referred: Emerging Issues(H)Modifies provisions relating to firearm suppressorsHB 548 · this session · introduced Dec 13, 2024
04/23/2025 - Referred: Rules - Administrative(H)Establishes the "Missouri Task Force on Nonprofit Safety and Security"HB 134 · this session · introduced Dec 2, 2024
04/29/2025 - Second read and referred: Transportation, Infrastructure and Public Safety(S)How they voted
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Roster from Open States (the open civic-data project), archived on our side. Bill records from the Missouri legislature’s own site.