Photo of Mia Costello
R Alaska House · District 15 On the 2026 ballot

Rep. Mia Costello

Compare
Total votes
201
all sessions
Attendance
77%
56 missed
Lower than 89% of chamber peers
With party
97%
of cast votes
Near the chamber average
Bipartisan score
1%
crosses aisle rarely
Near the chamber average
Sponsored
119
bills & resolutions
Near the chamber average
Committees
3
assignments
119 bills and resolutions

Sponsored bills

Total
119
Primary
17
Co-sponsor
102
This page
119
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Co-sponsor HB 244
Signed into law · Alaska House · Co-sponsor
An Act relating to certified nurse aide training; and providing for an effective date.

Maddy summaryHB 244 sets new standards for certified nurse aide training programs in Alaska, requiring them to ensure safe, competent care and specific skills. The bill directly affects training programs, which must now teach aides to communicate effectively with clients, support client independence, address cognitive impairments (including dementia), and monitor client well-being. Key provisions mandate training in areas like dementia care, emotional sensitivity, problem-solving, and respecting client dignity, with "activities of daily living" defined as eating, dressing, grooming, bathing, and toileting. The law takes effect January 1, 2027.

Signed into law Jul 3, 2026 1 co-sponsor
Primary HB 278
Vetoed · Alaska House · Lead sponsor
An Act establishing the Alaska-Ireland Trade Commission; and providing for an effective date.

Maddy summaryHB 278 establishes the Alaska-Ireland Trade Commission within the Alaska Department of Commerce, Community, and Economic Development. The commission, composed of five governor-appointed members serving two-year terms, aims to advance trade, investment, and academic exchanges between Alaska and Ireland. It must submit a report to the legislature by the 35th session's first meeting detailing its activities and recommendations. This procedural bill creates a new state body to foster economic partnerships without changing existing laws or imposing new taxes.

Vetoed Jul 3, 2026 0 co-sponsors
Co-sponsor HB 36
Signed into law · Alaska House · Co-sponsor
An Act relating to treatment foster homes; relating to the placement of foster children in hospitals and residential psychiatric treatment centers for psychiatric care; relating to the duties of the Department of Family and Community Services; relating to the care of children in state custody placed in psychiatric residential treatment facilities outside the state; amending Rule 12.1(b), Alaska Child in Need of Aid Rules of Procedure; and providing for an effective date.

Maddy summaryHB 36 amends Alaska law to allow minors aged 16 or older in foster care to consent to up to five outpatient mental health sessions without parental permission. After five sessions, mental health providers must obtain parental consent for medication or continued treatment. The bill also establishes documentation standards for homeless minors (16+ years) to self-certify eligibility for consent, requiring verification from specific officials or professionals. It directly affects youth in Alaska’s child welfare system receiving mental health services, particularly those in foster care or experiencing homelessness.

Signed into law Jul 3, 2026 1 co-sponsor
Co-sponsor HB 39
Signed into law · Alaska House · Co-sponsor
An Act relating to public school students who are deaf or hard of hearing.

Maddy summaryHB 39 requires Alaska public school districts to provide parents of deaf or hard of hearing students with unbiased information about hearing technology, communication methods (like sign language or spoken language), and support services. It mandates that districts allow parents to choose the communication method for their child and deliver services using that method through trained professionals. The bill also requires the state to support programs for deaf students, including residential options, and sets procedures for school districts operating these programs while maintaining special education responsibilities.

Signed into law Jul 3, 2026 1 co-sponsor
Co-sponsor HB 96
Vetoed · Alaska House · Co-sponsor
An Act establishing the Home Care Employment Standards Advisory Board; relating to payment for personal care services; and providing for an effective date.

Maddy summaryHB 96 establishes a Home Care Employment Standards Advisory Board within Alaska's Department of Health. The board, composed of 10 members representing home care providers, direct care workers, home care recipients, rate reviewers, seniors, and disability advocates, will advise on payment rates for home care services and investigate workforce conditions like wages and benefits. It requires the board to meet at least three times yearly, include public testimony, and focus on ensuring payment rates meet federal requirements and support a stable workforce. The bill directly affects home care workers, providers, and recipients of home care services in Alaska by creating a structured process to address payment adequacy and working conditions.

Vetoed Jul 3, 2026 1 co-sponsor
Co-sponsor HB 52
Vetoed · Alaska House · Co-sponsor
An Act relating to the rights of minors undergoing evaluation or inpatient treatment at psychiatric hospitals; relating to the use of seclusion or restraint of minors at psychiatric hospitals; relating to a report published by the Department of Health; relating to inspections by the Department of Health of certain psychiatric hospitals; and providing for an effective date.

Maddy summaryHB 52 ensures minors receiving inpatient mental health treatment at psychiatric hospitals in Alaska have the right to weekly confidential communication (via phone or video) with parents, legal guardians, or an approved adult, unless prohibited by law or deemed unadvisable by a physician. The bill requires psychiatric hospitals to report all uses of seclusion or restraint to the Department of Health and parents within one business day, and mandates biannual unannounced inspections of hospitals treating minors, including interviews with at least 50% of minor patients. It also requires the Department of Health to publish an annual report detailing seclusion/restraint usage, inspection findings, and data on minors in care, with the report due by November 1 each year. These provisions take effect on July 1, 2025.

Vetoed Jun 20, 2026 1 co-sponsor
Co-sponsor SB 21
Vetoed · Alaska Senate · Co-sponsor
An Act establishing the Alaska Work and Save Program in the Department of Revenue; relating to depositing permanent fund dividends into investment accounts; and providing for an effective date.

Maddy summarySB 21 establishes Alaska's Work and Save Program, allowing residents receiving the Alaska Permanent Fund Dividend (PFD) to automatically contribute portions of their PFD payment to retirement savings. The bill creates the Alaska Retirement Savings Board to oversee the program and requires employers without retirement plans to facilitate employee enrollment. Key provisions include automatic enrollment at a default contribution rate, optional annual increases, and a 7% administrative fee (not deducted from PFD payments). The program directly affects PFD recipients and private-sector employees in Alaska who lack employer-sponsored retirement plans.

Vetoed Jun 19, 2026 1 co-sponsor
Co-sponsor HCR 9
Passed · Alaska House · Co-sponsor
Honoring the 250th anniversary of the signing of the Declaration of Independence and celebrating the 250th birthday of the United States of America.

Maddy summaryThis symbolic resolution from Alaska's legislature honors the 250th anniversary of the Declaration of Independence signing (July 4, 1776) and encourages Alaskan residents to celebrate the 250th birthday of the United States in 2026. It commemorates the founding principles and historical significance of the Declaration without creating new laws or affecting specific groups.

Passed Jun 17, 2026 1 co-sponsor
Primary HJR 18
Passed · Alaska House · Lead sponsor
Supporting and recognizing the importance of a natural gas pipeline project in the state; and urging the federal government to take all necessary actions to expedite the state natural gas pipeline project.

Maddy summaryHJR 18 is a resolution passed by the Alaska State Legislature expressing support for the Alaska Liquefied Natural Gas (LNG) Project. It recognizes the project as critical for Alaska’s economy, U.S. energy independence, and national security, and urges federal officials - including President Trump, Secretary of the Interior Douglas Burgum, and relevant agencies - to expedite approvals and coordination for the project. The resolution highlights that the project would create high-paying jobs, generate long-term revenue, and provide a direct energy corridor for global LNG exports without relying on adversarial nations. As a non-binding resolution, it does not enact policy but formally advocates for federal action to advance the project.

Passed Jun 17, 2026 0 co-sponsors
Co-sponsor HB 1
Signed into law · Alaska House · Co-sponsor
An Act relating to specie as legal tender in the state; and relating to borough and city sales and use taxes on specie.

Maddy summaryHB 1 clarifies that gold and silver coins (defined as "specie") cannot be subject to borough or city sales and use taxes in Alaska. It also updates Alaska's legal tender definition to include federal, recognized foreign, or state-authorized gold/silver coins, while explicitly stating individuals are not required to accept such coins for payments. The bill primarily affects local tax policies and defines the conditions under which specie qualifies as legal tender, without creating new taxes or altering existing tax obligations.

Signed into law Jun 4, 2026 1 co-sponsor
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