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Running forState Assembly, District 21

Diane Papan

DemocratHas the job now

Overview

Diane Papan is an American politician who is a Democratic party member of the California State Assembly from the 21st district.

Campaign site →Official site →Ballotpedia →

Facts from Wikipedia.

How to reach them
Source: Open States

Bills they wrote

Bills and joint resolutions where they're the main author, since 2023. Laws first, then the ones that got furthest.

Wrote

80 bills

Became law

27 became law. Another 42 passed the House or Senate but didn't.

  • Introduced Feb 20, 2026AB 2595: San Mateo Electric Bicycle Safety Pilot Program.
    Became law
  • Introduced Feb 20, 2026AB 2469: Data centers: water use disclosures.
    Became law
  • Introduced Feb 20, 2026AB 2619: Water resources: data centers.
    Became law
  • Introduced Feb 19, 2026AB 2296: Planning and zoning: housing element: regional housing needs allocation.
    Became law
  • Introduced Feb 19, 2026AB 2234: California Environmental Quality Act: geothermal exploratory projects.
    Became law
  • Introduced Feb 19, 2026AB 2380: Pest control: registration fees.
    Became law
  • Introduced Feb 18, 2026AB 2111: Electricity: transmission planning and transmission facilities.
    Became law
  • Introduced Feb 13, 2026AB 1931: Insurance: home protection companies.
    Became law
  • Introduced Feb 21, 2025AB 1250: Transit operators: paratransit: recertification of eligibility.
    Became law
  • Introduced Feb 19, 2025AB 900: Environmental protection: 30x30 goals: land conservation: stewardship.
    Became law
  • Introduced Feb 10, 2025AB 501: Lawsuits, liens, and other encumbrances.
    Became law
  • Introduced Feb 4, 2025AB 411: Livestock carcasses: disposal: composting.
    Became law
  • Introduced Dec 2, 2024AB 60: Cosmetic safety.
    Became law
  • Introduced Feb 16, 2024AB 2962: Wholesale Regional Water System Security and Reliability Act.
    Became law
  • Introduced Feb 15, 2024AB 2842: Firearms.
    Became law
  • Introduced Feb 13, 2024AB 2515: Menstrual products: perfluoroalkyl and polyfluoroalkyl substances (PFAS).
    Became law
  • Introduced Feb 12, 2024AB 2318: State Water Pollution Cleanup and Abatement Account: receipts and expenditures: report.
    Became law
  • Introduced Feb 6, 2024AB 2123: Disability compensation: paid family leave.
    Became law
  • Introduced Feb 1, 2024AB 2037: Weights and measures: electric vehicle chargers.
    Became law
  • Introduced Jan 25, 2024AB 1921: Energy: renewable electrical generation facilities: definition.
    Became law
  • Introduced Jan 12, 2024AB 1827: Local government: fees and charges: water: higher consumptive water parcels.
    Became law
  • Introduced Feb 17, 2023AB 1359: California Environmental Quality Act: geothermal exploratory projects: lead agency.
    Became law
  • Introduced Feb 16, 2023AB 1304: Weights and measures: inspection fees.
    Became law
  • Introduced Feb 15, 2023AB 1115: Barry Keene Underground Storage Tank Cleanup Trust Fund Act of 1989: brownfields remediation and redevelopment.
    Became law
  • Introduced Feb 15, 2023AB 1023: California Cybersecurity Integration Center: school cybersecurity.
    Became law
  • Introduced Feb 14, 2023AB 893: Personal vehicle sharing programs.
    Became law
  • Introduced Feb 13, 2023AB 755: Water: public entity: water usage demand analysis.
    Became law
  • Introduced Feb 20, 2026AB 2521: California Council on Science and Technology: water availability study: Central Valley.
    Passed both chambers
  • Introduced Feb 19, 2026AB 2322: Water discharge: commercial, industrial, or institutional sites.
    Passed both chambers
  • Introduced Feb 9, 2026AB 1772: Fish and wildlife: invasive species: invasive mussels.
    Passed both chambers
  • Introduced Feb 21, 2025AB 1413: Sustainable Groundwater Management Act: groundwater adjudication.
    Passed both chambers
  • Introduced Feb 20, 2025AB 1146: Water infrastructure: dams and reservoirs: water release: false pretenses.
    Passed both chambers
  • Introduced Feb 19, 2025AB 882: Electronic court reporting.
    Passed both chambers
  • Introduced Feb 18, 2025AB 787: Provider directory disclosures.
    Passed both chambers
  • Introduced Feb 13, 2025AB 650: Planning and zoning: housing element: regional housing needs allocation.
    Vetoed
  • Introduced Feb 10, 2025AB 527: California Environmental Quality Act: geothermal exploratory projects: geothermal field development projects: enhanced geothermal system wells.
    Vetoed
  • Introduced Jan 7, 2025AB 93: Water resources: data centers.
    Vetoed
  • Introduced Feb 16, 2024AB 3220: Marine resources: Department of Fish and Wildlife: authority: mariculture.
    Passed both chambers
  • Introduced Feb 16, 2024AB 3023: Wildfire and Forest Resilience Task Force: interagency funding strategy: multiple benefit projects: grant program guidelines.
    Vetoed
  • Introduced Feb 14, 2024AB 2692: Criminal procedure: diversion.
    Passed both chambers
  • Introduced Feb 13, 2023AB 753: State Water Pollution Cleanup and Abatement Account: annual proceeds transfers.
    Vetoed
  • Introduced Feb 13, 2023AB 754: Water management planning: water shortages.
    Passed both chambers
  • Introduced Feb 9, 2023AB 609: Office of Wildfire Technology Research and Development: report on new technologies.
    Passed both chambers
  • Introduced Feb 8, 2023AB 575: Paid family leave.
    Vetoed
  • Introduced Jan 17, 2023AB 246: Product safety: menstrual products: perfluoroalkyl and polyfluoroalkyl substances.
    Vetoed
  • Introduced Feb 18, 2026AB 2088: Public Utilities: thermal energy networks.
    Passed the Assembly
  • Introduced Feb 17, 2026AB 2033: Local Agency Public Construction Act: job order contracting: cities.
    Passed the Assembly
  • Introduced Feb 11, 2026AB 1849: Decarbonized gaseous fuels.
    Passed the Assembly
  • Introduced Jan 8, 2026AB 1557: Vehicles: electric bicycles.
    Passed the Assembly
  • Introduced Feb 21, 2025AB 1313: Water quality: permits.
    Passed the Assembly
  • Introduced Feb 21, 2025AB 1372: Renewable electrical generation facilities: electrified commuter railroads: regenerative braking: net billing.
    Passed the Assembly
  • Introduced Feb 20, 2025AB 1030: County treasurer: settlement of accounts.
    Passed the Assembly
  • Introduced Feb 20, 2025AB 1095: Data centers: waste heat energy.
    Passed the Assembly
  • Introduced Feb 13, 2025AB 626: Underground storage tanks: design and construction requirements: exemption.
    Passed the Assembly
  • Introduced Feb 10, 2025AB 526: Energy: in-state geothermal energy generation.
    Passed the Assembly
  • Introduced Jan 30, 2025AB 360: Menopause.
    Passed the Assembly
  • Introduced Feb 15, 2024AB 2829: Digital Advertising Services Tax Law.
    Passed the Assembly
  • Introduced Feb 15, 2024AB 2732: Grant Information Act of 2018: internet web portal: climate-related grants: childcare sector.
    Passed the Assembly
  • Introduced Feb 14, 2024AB 2571: School district and community college district bonds: school facilities.
    Passed the Assembly
  • Introduced Feb 13, 2024AB 2482: County treasurer: settlement of accounts.
    Passed the Assembly
  • Introduced Feb 12, 2024AB 2409: Office of Planning and Research: permitting accountability transparency dashboard.
    Passed the Assembly
  • Introduced Jan 16, 2024AB 1837: San Francisco Bay area: public transit: Regional Network Management Council.
    Passed the Assembly
  • Introduced Jan 8, 2024AB 1798: Department of Transportation: contaminated stormwater runoff: salmon and steelhead trout bearing surface waters.
    Passed the Assembly
  • Introduced Feb 17, 2023AB 1379: Open meetings: local agencies: teleconferences.
    Passed the Assembly
  • Introduced Feb 17, 2023AB 1496: Educational technology: Digital Education Equity Pilot Program: county offices of education.
    Passed the Assembly
  • Introduced Feb 14, 2023AB 926: Income taxes: credits: affordable housing.
    Passed the Assembly
  • Introduced Feb 13, 2023AB 756: Department of Transportation: contaminated stormwater runoff: salmon and steelhead trout bearing surface waters.
    Passed the Assembly
  • Introduced Feb 6, 2023AB 431: Pupil instruction: financial literacy: instructional materials: professional development.
    Passed the Assembly
  • Introduced Jan 26, 2023AB 300: Notaries public: notification of death: delivery of notarial records and papers.
    Passed the Assembly
  • Introduced Feb 20, 2026AB 2715: School districts: local authority.
    Introduced
  • Introduced Feb 16, 2024AB 3244: Rental passenger vehicle transactions.
    Introduced
  • Introduced Feb 16, 2024AB 3202: County drainage districts: board of directors.
    Introduced
  • Introduced Feb 16, 2024AB 3113: Forestry and fire prevention: contracts for use of communications, telecommunications, and powerlines.
    Introduced
  • Introduced Feb 16, 2024AB 3157: California Water District Law.
    Introduced
  • Introduced Feb 15, 2024AB 2919: State Housing Law.
    Introduced
  • Introduced Feb 6, 2024AB 2162: Shellfish and seaweed operations: marine restoration projects.
    Introduced
  • Introduced Feb 17, 2023AB 1391: Corporation Tax Law.
    Introduced
  • Introduced Feb 17, 2023AB 1480: Civil actions: compensatory relief.
    Introduced
  • Introduced Feb 17, 2023AB 1455: Housing.
    Introduced
  • Introduced Feb 17, 2023AB 1515: Planning and zoning.
    Introduced

Source: Open States

How they voted

Final votes on bills that passed either chamber of the California legislature, since 2023. Votes on amendments, committees, and procedure are left out.

Votes shown

7,613 votes on bills that passed at least one chamber.

Attendance

Didn't vote on 570 of 7,613 votes (7%). California counts being absent and choosing not to vote the same way.

By topic
Accountability and Administrative Review17 votes
    Aging and Long-Term Care25 votes
      Agriculture95 votes
        Appropriations5 votes
          Arts, Entertainment, Sports, and Tourism28 votes
            Banking and Finance68 votes
              Banking and Financial Institutions19 votes
                Budget427 votes
                  Business and Professions302 votes
                    Business, Professions and Economic Development45 votes
                      Communications and Conveyance39 votes
                        Education565 votes
                          Elections163 votes
                            Elections and Constitutional Amendments54 votes
                              Emergency Management90 votes
                                Energy, Utilities and Communications39 votes
                                  Environmental Quality89 votes
                                    Environmental Safety and Toxic Materials142 votes
                                      Governance and Finance42 votes
                                        Governmental Organization274 votes
                                          Health658 votes
                                            Higher Education265 votes
                                              Housing66 votes
                                                Housing and Community Development363 votes
                                                  Human Services279 votes
                                                    Insurance135 votes
                                                      Judiciary641 votes
                                                        Labor and Employment192 votes
                                                          Local Government339 votes
                                                            Military and Veterans Affairs30 votes
                                                              Natural Resources256 votes
                                                                Natural Resources and Water201 votes
                                                                  Privacy and Consumer Protection160 votes
                                                                    Public Employment and Retirement130 votes
                                                                      Public Safety691 votes
                                                                        Rules3 votes
                                                                          Taxes (Revenue and Taxation)141 votes
                                                                            Transportation344 votes
                                                                              Utilities and Energy179 votes
                                                                                Other12 votes

                                                                                  Source: Open States, California Legislative Information. Topics from the state legislature.