Iowa State Senator

Mark Costello 2025-2026 Regular Session - Authored & Sponsored Legislation

Legislative Session

Co-Sponsor of Legislation

IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2315

Filed/Introduced
4/29/26  
Introduced
2/6/26  
A bill for an act relating to allocations of moneys from the juvenile detention home fund.(See HF 2537, HF 2781.)
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2679

Filed/Introduced
3/26/26  
Introduced
2/23/26  
Engrossed
3/5/26  
A bill for an act relating to specially constructed motorcycles.(Formerly HF 2439.)
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2680

Filed/Introduced
8/7/26  
Introduced
2/23/26  
Engrossed
3/5/26  
Enrolled
4/16/26  
A bill for an act relating to certified medication aides. (Formerly HSB 729.) Effective date: 07/01/2026.
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2562

Filed/Introduced
8/7/26  
Introduced
2/16/26  
Engrossed
2/26/26  
Enrolled
5/6/26  
A bill for an act relating to care facility placement decisions for certain adults, and including effective date provisions. (Formerly HSB 653.) Effective Date: Conditional, 07/01/2026.
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2563

Filed/Introduced
5/2/26  
Introduced
2/16/26  
A bill for an act relating to abortions including informed consent, dispensing abortion-inducing drugs, and reporting abortion-inducing drug complications.(Formerly HSB 704; See HF 2788.)
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2537

Filed/Introduced
4/29/26  
Introduced
2/16/26  
A bill for an act relating to allocations of moneys from the juvenile detention home fund.(Formerly HF 2315; See HF 2781.)
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2514

Filed/Introduced
8/7/26  
Introduced
2/16/26  
Engrossed
2/23/26  
Refer
2/24/26  
Enrolled
4/8/26  
A bill for an act making children of child care workers in this state eligible for the state child care assistance program. (Formerly HSB 500.) Effective date: 07/01/2026.
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2598

Filed/Introduced
8/7/26  
Introduced
2/19/26  
Engrossed
3/4/26  
Enrolled
5/13/26  
A bill for an act relating to a required course of instruction regarding human trafficking prevention for persons applying for the initial issuance of certain commercial driver’s licenses, and including applicability provisions. (Formerly HSB 697.) Effective date: 07/01/2026. Applicability date: Conditional.
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2739

Filed/Introduced
8/7/26  
Introduced
3/13/26  
Refer
3/13/26  
Engrossed
3/19/26  
Enrolled
3/25/26  
A bill for an act relating to state finances by modifying the taxes imposed on health maintenance organizations, making transfers from the taxpayer relief fund, making and supplementing appropriations to the department of health and human services, and including effective date, contingent effective date, and retroactive applicability provisions. (Formerly HSB 762.) Contingent effective date, effective 03/25/2026. Applicability date: 01/01/2026.
IA

Iowa 2025-2026 Regular Session

Iowa House Bill HF2781

Filed/Introduced
8/7/26  
Introduced
4/16/26  
Engrossed
4/28/26  
Refer
4/28/26  
Enrolled
5/18/26  
A bill for an act relating to allocations of moneys from the juvenile detention home fund. (Formerly HF 2537, HF 2315.) Effective date: 07/01/2026.
IA

Iowa 2025-2026 Regular Session

Iowa Senate Bill SF2339

Filed/Introduced
3/3/26  
Introduced
2/16/26  
A bill for an act enacting the psychology interjurisdictional compact.(Formerly SSB 3116.)
IA

Iowa 2025-2026 Regular Session

Iowa Senate Bill SF2483

Filed/Introduced
5/2/26  
A bill for an act relating to and making appropriations to the department of veterans affairs and the department of health and human services, including aging and disability services, behavioral health, public health, and community access and eligibility; the medical assistance program, state supplementary assistance, Hawki, and other health-related programs; family well-being and protection; state-operated specialty care; administration and compliance; prior appropriations; child welfare and juvenile justice decategorization; commitment or hospitalization of certain persons with mental illness or substance abuse disorders; child abuse prevention; creation of a comprehensive family support program; and repeal of expenditure projections for state child care assistance and adoption subsidy programs; and including effective date and retroactive applicability provisions.(Formerly SSB 3192.)
IA

Iowa 2025-2026 Regular Session

Iowa Senate Bill SF2464

Filed/Introduced
3/24/26  
Introduced
3/4/26  
A bill for an act relating to state finances by modifying the taxes imposed on health maintenance organizations, making transfers from the taxpayer relief fund, making and supplementing appropriations to the department of health and human services, and including effective date, contingent effective date, and retroactive applicability provisions.(Formerly SSB 3182.)
IA

Iowa 2025-2026 Regular Session

Iowa Senate Bill SF2423

Filed/Introduced
4/20/26  
A bill for an act relating to care facility placement decisions for certain adults.(Formerly SSB 3096.)

Primary Sponsor of Legislation

IA

Iowa 2025-2026 Regular Session

Iowa Senate Bill SF320

Filed/Introduced
3/3/25  
Introduced
2/17/25  
A bill for an act creating a capital murder offense by establishing the penalty of death for murder in the first degree of a peace officer on duty, and including effective date and applicability provisions.