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Protected: States Standing Up for Safeguards

Since the beginning of the Trump administration, states across the country have joined together to challenge in court the rollback of regulatory safeguards that protect our health, economy, safety and environment. Coalitions led by attorney generals from states like California, Maryland, Massachusetts, New York, Oregon, and Washington have stepped up to challenge the harmful deregulatory agenda pushed by the White House and Trump-controlled agencies.

Check out the database below for a list of major multi-state lawsuits:

Index of State Lawsuits

DateTopicLead State(s)Participating StatesCategory
2019/11To apply for a waiver under the Environmental Protection Agency's Clean Air Act to set state emissions standards for cars and light trucks.CaliforniaColorado, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New Jersey, New Mexico, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia, Washington and Wisconsin.Transportation
2019/11To challenge the Department of Energy's final rule rolling back energy efficiency standards for certain light bulbs. California and New YorkColorado, Connecticut, District of Columbia, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Jersey, Nevada, Oregon, Vermont, and WashingtonEnergy and Environment
2019/10To file a petition demanding that the Environmental Protection Agency impose direct pollution limits on industrial sources in nine upwind states. New YorkNew JerseyEnergy and Environment
2019/10To order the Environmental Protection Agency to issue a pollution plan for delinquent states under the Clean Air Act.New JerseyConnecticutEnergy and Environment
2019/10To challenge the Environmental Protection Agency's new landfill emissions rules.CaliforniaIllinois, Maryland, New Jersey, New Mexico, Oregon, Pennsylvania, Rhode Island, and Vermont.Energy and Environment
2019/9To protect the Endangered Species Act.CaliforniaColorado, Connecticut. Illinois, Massachusetts, Maryland, Michigan, North Carolina, New Jersey, New Mexico, Nevada, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington. Energy and Environment
2019/9To stop the Trump administration from revoking states' authority to set greenhouse gas emission and fuel economy standards for cars and trucks.CaliforniaColorado, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Massachusetts, Maryland, Maine, Michigan, Minnesota, Nevada, New Jersey, New Mexico, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, Virginia, Vermont, Washington, Wisconsin.Transportation
2019/9To challenge Security and Exchange Commission's adoption of Regulation Best Interest rule.New York California, Connecticut, Delaware, District of Columbia, Maine, and New Mexico.Financial
2019/8To end the penalization of immigrants using public benefits.Washington Colorado, Delaware, Illinois, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New Jersey, New Mexico and Rhode Island.Immigration
2019/8To protect the Clean Air Act.New YorkColorado, Connecticut, Delaware, Hawaii, Illinois, Maine, Maryland, New Jersey, New Mexico, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington.Energy and Environment
2019/8To challenge a final rule issued by the National Highway Traffic Safety Administration that reduces penalties for automakers that fail to meet fuel economy standards.California and New York Connecticut, Delaware, District of Columbia, Illinois, Maryland, Massachusetts, New Jersey, Oregon, Rhode Island, Vermont and Washington.Transportation
2019/8To challenge Environmental Protection Agency's failure to adequately regulate chlorpyrifos, a widely used pesticide on food crops.New York California, Maryland, Massachusetts, Vermont and Washington.Energy and Environment
2019/7To strike down Internal Revenue Service rule that would prevent residents of the plaintiff states from obtaining a full federal charitable deduction whenever they contribute to local governments.New JerseyConnecticut and New York.Taxes
2019/7To defend the Obama-era Valuation Rule that closes a loophole allowingcompanies to avoid royalty payments when mining on public land.California and New Mexico Energy and Environment
2019/7To tighten Environmental Protection Agency's oversight of asbestos.California and MassachusettsConnecticut, Hawaii, Maine, Maryland, Minnesota, New Jersey, Oregon and Washington.Energy and Environment
2019/5To challenge the Department of Health and Human Services's proposed rule to reinterpret Medicaid state payment requirements.California Connecticut, Massachusetts, Oregon and Washington.Health
2019/5To challenge the Department of the Treasury's failure to respond to Freedom of Information Act records requests.New York New JerseyRegulatory Process
2019/5To challenge rule that allows businesses to refuse to provide health care on the basis of “religious beliefs or moral convictions.”New York Colorado, Connecticut, Deleware, District of Columbia, Hawaii, Illinois, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New Jersey, New Mexico, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Wisconsin.Health
2019/4To challenge the Department of Agriculture's alteration of federal nutritional standards.New YorkCalifornia, District of Columbia, Illinois, Minnesota, New Mexico and Vermont.Health
2019/4To challenge the Trump administration's anti-regulatory executive order.CaliforniaOregon and Minnesota.Regulatory Process
2019/3To challenge the Department of Health and Human Service's Title X rule to alter family planning services.Oregon Colorado, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New Jersey, New Mexico, New York, North Carolina, Pennsylvania, Rhode Island, Vermont, Virginia and Wisconsin.Health
2019/3To challenge the rollback of the Occupational Safety and Health Administration's injury and illness reporting rules.New JerseyIllinois, Maryland, Massachusetts, Minnesota, and New York. Workplace
2019/2To stop Trump’s use of emergency powers to build border wall.CaliforniaColorado, Connecticut, Delaware, Hawaii, Illinois, Maine, Maryland, Michigan, Minnesota, Nevada, New Jersey, New Mexico, New York, Oregon and Virginia.Immigration
2019/1 To challenge the Environmental Protection Agency's cross-state air pollution rule.New York Connecticut, Delaware, Maryland, Massachusetts and New Jersey.Energy and Environment
2018/10To challenge the Environmental Protection Agency's denial of a petition requesting out-of-state power plants reduce emissions.MarylandDelaware, New York, and New Jersey.Energy and Environment
2018/10To challenge the Environmental Protection Agency's rule weakening air toxic compliance requirements for cement plants.California Energy and Environment
2018/9To seek a declaratory judgment that the Affordable Care Act is constitutional.MarylandConnecticut, Deleware, District of Columbia, Hawaii, Illinois, Maine, Massachusetts, New Mexico, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, Virginia and Washington. Health
2018/9To challenge the Environmental Protection Agency's rule on reporting requirements for mercury products.VermontConnecticut, Hawaii, Massachusetts, Maine, Maryland, Minnesota, New Jersey, Oregon, Pennsylvania, Rhode Island and Washington.Energy and Environment
2018/9To challenge the Trump administration’s pullback of Migratory Bird Treaty Act.New York California, Illinois, Maryland, Massachusetts, New Jersey, New Mexico and Oregon.Energy and Environment
2018/9To challenge the Environmental Protection Agency's attempt to dismantle environmental waste protections.California New MexicoEnergy and Environment
2018/8To assert that the Environmental Protection Agency should have designated larger nonattainment areas under the Clean Air Act.IllinoisConnecticut, Delaware, Massachusetts, Maryland, Maine, Minnesota, New Jersey, New York, Oregon, Rhode Island, Vermont and Washington.Energy and Environment
2018/7To challenge a State Department settlement regarding the 3D printing of firearms.Washington Connecticut, District of Columbia, Maryland, Massachusetts, New Jersey, New York, Oregon and Pennsylvania.Guns
2018/7To challenge a Trump administration rule that allows employers nationwide to offer "junk" health plans.New York California, Delaware, District of Columbia, Kentucky, Maryland, Massachusetts, New Jersey, Oregon, Pennsylvania, Virginia and Washington.Health
2018/7To file an emergency motion asking for the overturn of the Environmental Protection Agency’s rules for glider vehicles.California Delaware, District of Columbia, Illinois, Maine, Maryland, Massachusetts, New Jersey, New York, New Mexico, North Carolina, Oregon, Pennsylvania, Rhode Island, Vermont and Washington.Transportation
2018/7To block the Department of Justice's efforts to punish so-called “sanctuary” jurisdictions.New York Connecticut, Massachusetts, New Jersey, Virginia and Washington.Immigration
2018/7To challenge the state and local tax deduction cap in the 2017 tax bill.New YorkConnecticut, Maryland, New York, and New Jersey.Taxes
2018/6To challenge the Trump administration's "2-for-1" regulatory order.CaliforniaOregonRegulatory Process
2018/6To charge that the Environmental Protection Agency violated the Clean Air Act when it rescinded regulations prohibiting the use of hydrofluorocarbons.New York California, Delaware, District of Columbia, Illinois, Massachusetts, Minnesota, New Jersey, Oregon, Vermont and Washington. Energy and Environment
2018/5To challenge the Environmental Protection Agency's lack of compliance with landfill emissions rules.CaliforniaIllinois, Maryland, New Mexico, Oregon, Pennsylvania, Rhode Island and Vermont.Energy and Environment
2018/5To challenge the Environmental Protection Agency's violation of the agricultural worker protection standards.New YorkCalifornia and Maryland.Workplace
2018/5To protect vehicle emission standards.CaliforniaConnecticut, Delaware, District of Columbia, Illinois, Iowa, Maine, Maryland, Massachusetts, Maine, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington.Transportation
2018/4To challenge the Environmental Protection Agency's illegal delay of the implementation of methane emissions rules. New YorkCalifornia, Connecticut, District of Columbia, Illinois, Iowa, Maine, Maryland, Massachusetts, New Mexico, Oregon, Pennsylvania, Rhode Island and Vermont.Energy and Environment
2018/4To challenge the Department of Commerce's addition of a citizenship question the U.S. census.New YorkConnecticut, Delaware, Illinois, Iowa, Maryland, Massachusetts, Minnesota, New Jersey, New Mexico, North Carolina, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington.Immigration
2018/2To prevent the Environmental Protection Agency from suspending the "waters of the United States" rule.New YorkCalifornia, Connecticut, District of Columbia, Maryland, Massachusetts, New Jersey, Oregon, Rhode Island, Vermont and Washington.Energy and Environment
2018/1To protect 2015 Open Internet Order that designates internet service providers as public utilities.New YorkCalifornia, Connecticut, Delaware, Hawaii, Illinois, Iowa, Kentucky, Maine, Maryland, Massachusetts, Minnesota, Mississippi, New Jersey, New Mexico, North Carolina, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington.Technology
2018/1To challenge the Environmental Protection Agency's failure to abide by National Ambient Air Quality Standards for ozone.New York ConnecticutEnergy and Environment
2017/12To force action under the Clean Air Act.New York Connecticut, Delaware, Maryland, Massachusetts, Pennsylvania, Rhode Island and Vermont.Energy and Environment
2017/12To claim that the Environmental Protection Agency is violating the Clean Air Act by delaying regulations on ground level ozone.CaliforniaConnecticut, District of Columbia, Illinois, Iowa, Maine, Maryland, Massachusetts, Minnesota, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington.Energy and Environment
2017/12To challenge the suspension of the Waste Prevention Rule.California and New MexicoEnergy and Environment
2017/12To challenge the Department of Education's failure to discharge fraudulent loans.MassachusettsIllinois and New YorkEducation
2017/11To challenge the Trump administration's transgender military ban.CaliforniaConnecticut, Delaware, District of Columbia, Hawaii, Illinois, Iowa, Maryland, Massachusetts, New Mexico, New York, Oregon, Pennsylvania, Rhode Island and Vermont.LGBTQ
2017/10To challenge the Department of Interior's repeal of a rule that required energy companies to pay royalties when mining on public land.California New MexicoEnergy and Environment
2017/10To accuse the Department of Education of illegally delaying the "gainful employment rule."MarylandCalifornia, Connecticut, Delaware, District of Columbia, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington.Education
2017/10To challenge the Trump administration's decision to stop making Obama-era subsidy payments for healthcare.CaliforniaConnecticut, Delaware, District of Columbia, Hawaii, Illinois, Iowa, Maryland, Massachusetts, Minnesota, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington.Health
2017/10To challenge a rollback of a requirement under the Affordable Care Act for employers to include birth control coverage in their health insurance plans.PennsylvaniaCalifornia, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Iowa, Maine, Maryland, Massachusetts, Minnesota, New Mexico, New York, North Carolina, Oregon, Rhode Island, Vermont, Virginia and Washington.Health
2017/10To argue that the Trump Administration's federal rules rescinding contraceptives coverage in the Affordable Care Act.CaliforniaColorado, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Maryland, Michigan, Minnesota, Nevada, New York, North Carolina, Rhode Island, Virginia and Washington. Health
2017/9To challenge the repeal of the greenhouse gas performance measures.California Iowa, Maryland, Massachusetts, Oregon, Vermont and Washington.Energy and Environment
2017/9To challenge the delay of penalties for violating fuel efficiency standards.New York California, Maryland, Pennsylvania and Vermont.Transportation
2017/9To challenge the rescission of the Deferred Action for Childhood Arrivals program.New YorkDelaware, District of Columbia, Hawaii, Illinois, Iowa, Massachusetts, New Mexico, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia, and Washington. Immigration
2017/8To challenge the Environmental Protection Agency's decision to delay implementation of the 2015 ozone standard. New YorkCalifornia, Connecticut, Delaware, Illinois, Iowa, Maine, Massachusetts, Minnesota, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington.Energy and Environment
2017/8To challenge the delay of the Chemical Accident Safety Rule.New York Illinois, Iowa, Maine, Maryland, Massachusetts, New Mexico, Oregon, Rhode Island, Vermont and Washington.Energy and Environment
2017/7To challenge the illegal postponement of the Waste Prevention Rule.California Maryland, New York, New Mexico, Oregon, and Washington.Energy and Environment
2017/7To challenge the Environmental Protection Agency's violation of toxic pesticide regulations.New YorkCalifornia, District of Columbia, Hawaii, Maryland, Massachusetts, Washington and Vermont.Energy and Environment
2017/7To claim that the Administrator of the Environmental Protection Agency, Scott Pruitt, illegally delayed implementation of a rule for congressionally-mandated protections against explosives.New YorkIllinois, Iowa, Maine, Maryland, Massachusetts, New Mexico, Oregon, Rhode Island, Vermont, and Washington.Energy and Environment
2017/6To challenge the Environmental Protection Agency's delay in implementing regulations for emissions and new oil and gas facilities.MassachusettsConnecticut, Delaware, District of Columbia, Illinois, Iowa, Maryland, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington.Energy and Environment
2017/6To prove that the Department of Energy is illegally delaying the publishing of new energy efficiency standards.CaliforniaConnecticut, Illinois, Maine, Maryland, Massachusetts, New York, Oregon, Pennsylvania, Vermont and Washington.Energy and Environment
2017/6To challenge the Department of Education's delay of the implementation start date of the borrower defense rule.MassachusettsCalifornia, Connecticut, Delaware, Hawaii, Illinois, Iowa, Maryland, Minnesota, New Mexico, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington.Education
2017/5To challenge the Department of the Interior's decision to reopen a program to lease coal-mining rights on public land without studying potential environmental impacts.CaliforniaNew Mexico, New York and Washington.Energy and Environment
2017/4To challenge the Department of the Interior's failure to enforce rule that ensures taxpayers receive adequate royalties from companies that extract oil, gas, and coal from federal lands.California New MexicoEnergy and Environment
2017/4To defend efficiency standards for light bulbs. California, District of Columbia, Massachusetts, New York, Oregon, Vermont and Washington.Energy and Environment
2017/3To challenge the unlawful delay in implementing new energy efficiency rules for ceiling fans.New YorkConnecticut, District of Columbia, Hawaii, Massachusetts, Oregon, Vermont and Washington.Energy and Environment
2017/1To challenge the Department of Education's protection of for-profit colleges.District of Columbia, New York, Massachusetts, Illinois, Maine and Maryland.Education
2017/1To defend the powers of the Consumer Financial Protection Bureau.Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Iowa, Maine, Maryland, Massachusetts, Minnesota, Mississippi, New Mexico, New York, North Carolina, Oregon, Rhode Island, Vermont and Washington.Financial