Photo of Oscar De Los Santos
D Arizona House · District 11 On the 2026 ballot

Rep. Oscar De Los Santos

Compare
Total votes
2,940
all sessions
Attendance
87%
377 missed
Lower than 97% of chamber peers
With party
97%
of cast votes
Higher than 96% of chamber peers
Bipartisan score
4%
crosses aisle rarely
Lower than 99% of chamber peers
Sponsored
459
bills & resolutions
Near the chamber average
Committees
3
assignments
459 bills and resolutions

Sponsored bills

Total
459
Primary
56
Co-sponsor
403
This page
459
matching current filters
Co-sponsor HB 2758
Introduced · Arizona House · Co-sponsor
antidiscrimination; public accommodations; employment; housing

Maddy summaryHB 2758 prohibits health providers from offering conversion therapy to patients under 18 years old, with exceptions for clergy acting in religious roles and parents acting as family members. It explicitly adds "gender identity" and "sexual orientation" as protected characteristics in Arizona’s anti-discrimination laws covering public accommodations, employment, and housing. The bill defines "gender identity" to include medical history, consistent self-identification, and other evidence, while clarifying that discrimination based on these factors is unlawful. It also establishes statewide regulation of conversion therapy, preempting local laws, and updates definitions for terms like "public accommodations" to include businesses serving the public. The law directly affects health providers, businesses, and individuals seeking services without discrimination in these areas.

Introduced Feb 11, 2025 1 co-sponsor
Co-sponsor HB 2247
Introduced · Arizona House · Co-sponsor
PFAS; health study; appropriation

Maddy summaryHB 2247 appropriates $1 million from Arizona's state general fund to the University of Arizona for a health study on PFAS chemicals. The study will test blood levels of perfluoroalkyl and polyfluoroalkyl substances (PFAS) in Arizona residents who receive drinking water from private wells or public systems contaminated with PFAS above federal safety limits. It directly affects individuals using water sources with PFAS exceeding U.S. Environmental Protection Agency standards. The bill mandates the university to conduct this specific health assessment using state funding. This is a funding measure, not a regulatory change, focused on gathering data on exposure.

Introduced Feb 11, 2025 1 co-sponsor
Co-sponsor HB 2756
Introduced · Arizona House · Co-sponsor
landlord tenant; nonpayment; proceedings

Maddy summaryHB 2756 modifies Arizona's landlord-tenant eviction procedures. It requires landlords to wait seven days after a court judgment before issuing an eviction order, and mandates 24 hours' notice to tenants before enforcing the eviction. The bill also clarifies that tenants who remain in property after an eviction order without permission face criminal trespass charges. Additionally, it updates rules for tenant lease violations, stating that false information on rental applications (like income or occupancy details) makes the breach non-remediable, allowing immediate eviction. This affects all Arizona landlords and tenants involved in nonpayment or lease violation cases.

Introduced Feb 11, 2025 1 co-sponsor
Co-sponsor HB 2242
Introduced · Arizona House · Co-sponsor
utilities; restrictions; prohibitions; preemption; repeal

Maddy summaryHB 2242 limits municipal authority over utility provider choices for new construction. It prohibits cities and counties from denying building permits based on the proposed utility provider (water, wastewater, gas, or electric) or charging higher fees for specific providers. The bill requires equal treatment of all authorized utility providers and bans municipalities from requiring business licenses as a permit condition. It also prevents municipalities from forcing subsequent owners to obtain permits for prior unpermitted construction, except for health/safety violations. The law repeals conflicting prior statutes (ARS 9-810 and 11-867) to clarify statewide standards for building permits.

Introduced Feb 11, 2025 1 co-sponsor
Co-sponsor HB 2240
Introduced · Arizona House · Co-sponsor
citizen suits; environment

Maddy summaryHB 2240 amends Arizona laws to clarify and strengthen private citizen lawsuits for environmental violations. It allows people directly harmed by breaches of water or air quality rules to sue polluters, government agencies, or the director, but requires a 120-day notice period for water cases (Section 49-264) or 60 days for air cases (Section 49-407) before filing. The bill prevents duplicate lawsuits by blocking citizen suits if the state is already enforcing violations, and permits courts to award attorney fees to successful plaintiffs while directing penalty funds to specific environmental funds. This creates a clearer legal pathway for citizens to enforce environmental protections without duplicating government enforcement efforts.

Introduced Feb 11, 2025 1 co-sponsor
Primary HB 2362
Introduced · Arizona House · Lead sponsor
plant; transmission line; definitions

Maddy summaryHB 2362 is a definitions bill that clarifies key terms for electric power plants and transmission lines in Arizona law. It defines specific terms like "plant" (thermal/nuclear/hydroelectric units ≥125 MW), "transmission line" (above-ground lines ≥115 kV spanning >1 mile), and "certificate of environmental compatibility" to be used in future siting procedures. This bill does not change current laws or create new requirements - it only establishes standardized language for future legislation governing where new energy infrastructure can be built. The definitions aim to support a more coordinated process for reviewing facility locations, as noted in the bill's legislative intent.

Introduced Feb 11, 2025 0 co-sponsors
Co-sponsor HB 2777
Introduced · Arizona House · Co-sponsor
expenditure limitation; school districts; repeal.

Maddy summaryHB 2777 repeals Section 15-911 of Arizona law and amends Section 15-1285 to exempt school districts and career technical education districts from budgetary, expenditure, and revenue control limits when using certain state funds. This means these districts can spend funds received under specific programs without being constrained by the usual spending caps that apply to other local revenues. The bill also modifies how county expenditure limits are calculated, including annual adjustments based on GDP changes for construction projects and justice of the peace compensation. The primary effect is to provide greater flexibility for school districts in managing state-funded programs.

Introduced Feb 11, 2025 1 co-sponsor
Co-sponsor HB 2241
Introduced · Arizona House · Co-sponsor
energy measuring; reporting prohibition; repeal

Maddy summaryThis bill repeals two Arizona law sections (ARS 9-500.36 and 11-269.14) that previously required specific energy-related reporting. It removes these reporting obligations from state law without creating new requirements. The bill directly affects entities that would have been subject to those reporting rules. As a procedural repeal, it makes no new policy changes but eliminates existing administrative requirements.

Introduced Feb 11, 2025 1 co-sponsor
Co-sponsor HB 2249
Introduced · Arizona House · Co-sponsor
state waters; rules; ecological services.

Maddy summaryHB 2249 amends Arizona's water quality laws to update the state's regulatory framework for discharges into protected waters. It requires the director to adopt rules creating a permit program for point-source discharges into "WOTUS" (Waters of the United States) that aligns with federal Clean Water Act standards, while establishing specific exemptions for agricultural activities (like farming, ranching, and irrigation maintenance), recharge projects, and existing water infrastructure. The bill also mandates rules for nonpoint source pollution control, aquifer protection permits, and reclaimed water reuse, with fees collected for permits deposited into a dedicated water quality fund. These changes directly affect businesses, farms, and water management entities that discharge pollutants into Arizona's waters.

Introduced Feb 11, 2025 1 co-sponsor
Co-sponsor HB 2710
Introduced · Arizona House · Co-sponsor
appropriation; tribal assisted living facilities

Maddy summaryHB 2710 allocates $15 million from Arizona's state general fund for fiscal year 2025-2026 to help tribal governments open or reopen assisted living facilities and nursing homes on tribal lands. The funds must be distributed proportionally across northern, central, and southern regions of Arizona, with at least $1.5 million specifically reserved for the Hopi Tribe and $1.5 million for the Navajo Nation. This funding directly supports tribal governments in expanding or restoring elder care services for tribal communities. The bill establishes concrete financial mechanisms to address infrastructure needs at tribal facilities without altering eligibility or service standards.

Introduced Feb 11, 2025 1 co-sponsor
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