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11.3 Preemption

🦂Texas Government
Unit 11 Review

11.3 Preemption

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
🦂Texas Government
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Federal preemption allows national laws to override state laws when conflicts arise. This legal doctrine stems from the Constitution's Supremacy Clause, which establishes federal law as the "supreme law of the land." Preemption plays a crucial role in maintaining the balance of power between federal and state governments.

Understanding preemption is essential for grasping the complexities of federalism in the United States. It impacts various areas of law and policy, including immigration, environmental regulation, and healthcare. Preemption cases often involve disputes between states and the federal government over the scope of federal authority.

Definition of preemption

  • Preemption is a legal doctrine that allows federal law to supersede or take precedence over state law when there is a conflict between the two
  • Rooted in the Supremacy Clause of the U.S. Constitution, which establishes the Constitution and federal laws as the "supreme law of the land"
  • Preemption is a key concept in the study of federalism and the balance of power between the federal government and the states in the U.S. system of government

Preemption vs supremacy clause

  • The Supremacy Clause is the constitutional basis for the doctrine of preemption
    • Found in Article VI, Clause 2 of the U.S. Constitution
    • Establishes that the Constitution, federal laws, and treaties are the "supreme law of the land"
  • Preemption is the practical application of the Supremacy Clause
    • Allows federal law to override conflicting state laws
    • Ensures that federal policies and regulations are implemented consistently across the country

Types of preemption

  • Express preemption occurs when a federal law explicitly states that it preempts state law on a particular issue
  • Implied preemption occurs when a federal law does not explicitly preempt state law but the courts determine that it was the intent of Congress to do so
    • Field preemption: Federal law is so comprehensive that it leaves no room for state regulation in that area
    • Conflict preemption: State law directly conflicts with federal law, making compliance with both impossible

Preemption in the constitution

  • The U.S. Constitution establishes the framework for the federal system of government and the division of power between the federal government and the states
  • Preemption is a key tool for maintaining the balance of power and ensuring that federal policies are implemented consistently across the country

Preemption in article VI

  • Article VI, Clause 2 of the U.S. Constitution contains the Supremacy Clause
    • "This Constitution, and the Laws of the United States which shall be made in Pursuance thereof; and all Treaties made, or which shall be made, under the Authority of the United States, shall be the supreme Law of the Land..."
  • The Supremacy Clause establishes the Constitution, federal laws, and treaties as the highest form of law in the United States
    • Provides the constitutional basis for the doctrine of preemption
    • Ensures that federal law takes precedence over conflicting state laws

Necessary and proper clause

  • The Necessary and Proper Clause, also known as the Elastic Clause, is found in Article I, Section 8, Clause 18 of the U.S. Constitution
    • Grants Congress the power to make all laws "necessary and proper" for carrying out its enumerated powers
  • The Necessary and Proper Clause has been interpreted to expand the scope of federal power and the ability of Congress to preempt state laws
    • Allows Congress to pass laws that are not explicitly mentioned in the Constitution but are necessary to carry out its enumerated powers
    • Has been used to justify federal preemption in areas such as environmental regulation and healthcare policy

Federal preemption of state laws

  • Federal preemption is the process by which federal law supersedes or overrides conflicting state laws
  • Preemption can occur through express preemption, where a federal law explicitly states that it preempts state law, or through implied preemption, where the courts determine that it was the intent of Congress to preempt state law

Express vs implied preemption

  • Express preemption occurs when a federal law contains language that explicitly states that it preempts state law on a particular issue
    • Example: The Employee Retirement Income Security Act (ERISA) explicitly preempts state laws that relate to employee benefit plans
  • Implied preemption occurs when a federal law does not explicitly preempt state law but the courts determine that it was the intent of Congress to do so
    • Can take the form of field preemption or conflict preemption
    • Requires the courts to interpret the intent of Congress and the scope of federal regulation in a particular area

Field vs conflict preemption

  • Field preemption occurs when federal law is so comprehensive that it leaves no room for state regulation in that area
    • Example: The National Labor Relations Act (NLRA) has been interpreted to preempt state laws that attempt to regulate union organizing and collective bargaining
  • Conflict preemption occurs when state law directly conflicts with federal law, making compliance with both impossible
    • Example: State laws that attempt to regulate the labeling of generic drugs have been found to be preempted by federal regulations issued by the Food and Drug Administration (FDA)

Texas laws and preemption

  • As a state within the United States, Texas is subject to federal preemption in various areas of law and policy
  • Understanding the scope of federal preemption is crucial for Texas lawmakers and citizens, as it determines the extent to which state laws can be enforced

Areas of federal preemption in Texas

  • Immigration: Federal law preempts many aspects of state immigration policy, such as the regulation of border security and the enforcement of immigration laws
  • Environmental regulation: Federal environmental laws, such as the Clean Air Act and the Clean Water Act, preempt state laws that attempt to set different standards or regulations
  • Healthcare: Federal healthcare laws, such as the Affordable Care Act (ACA) and Medicare, preempt state laws that conflict with their provisions or attempt to regulate the same areas

Texas laws preempted by federal law

  • Texas's voter ID law (SB 14) was challenged in court and found to be preempted by the federal Voting Rights Act
    • The law required voters to present specific forms of photo ID at the polls, which was found to discriminate against minority voters
  • Texas's attempt to regulate the disposal of low-level radioactive waste was preempted by the federal Atomic Energy Act
    • The Act gives the federal government exclusive authority to regulate the disposal of radioactive materials
  • Portions of Texas's tort reform laws, which limit the ability of plaintiffs to sue for medical malpractice, have been found to be preempted by ERISA when they apply to employee benefit plans

Preemption court cases

  • Preemption cases often involve disputes between states and the federal government over the scope of federal power and the ability of states to regulate certain areas
  • The Supreme Court has played a crucial role in interpreting the Supremacy Clause and the doctrine of preemption, establishing key precedents that guide lower courts in deciding preemption cases

Landmark preemption cases

  • McCulloch v. Maryland (1819): Established the doctrine of implied powers and the supremacy of federal law over conflicting state laws
    • The Court ruled that a state could not tax a federal bank, as this would interfere with the federal government's implied power to establish a national banking system
  • Gibbons v. Ogden (1824): Affirmed the federal government's power to regulate interstate commerce and preempt conflicting state laws
    • The Court ruled that a federal license to operate steamboats on interstate waterways preempted a New York state law granting a monopoly to a particular company
  • Pennsylvania v. Nelson (1956): Established the doctrine of field preemption
    • The Court ruled that the federal Smith Act, which prohibited advocating the overthrow of the government, preempted a Pennsylvania state law that attempted to regulate the same conduct

Texas preemption cases

  • Crosby v. National Foreign Trade Council (2000): The Supreme Court ruled that a Massachusetts law restricting state agencies from doing business with companies that trade with Burma (Myanmar) was preempted by federal sanctions against Burma
    • This case set a precedent for the preemption of state laws that conflict with federal foreign policy, which has implications for Texas's attempts to regulate international trade and investment
  • Planned Parenthood of Houston and Southeast Texas v. Sanchez (2003): The Fifth Circuit Court of Appeals ruled that a Texas law restricting the use of federal funds for abortion services was preempted by the federal Medicaid Act
    • The court found that the Texas law conflicted with the federal requirement that states provide Medicaid funding for medically necessary abortions
  • Texas v. United States (2015): The Fifth Circuit Court of Appeals upheld a lower court's injunction against the implementation of President Obama's Deferred Action for Parents of Americans (DAPA) program
    • The court found that the states, including Texas, were likely to succeed on their claim that the DAPA program violated the federal Administrative Procedure Act and was not authorized by federal immigration law

Preemption and state sovereignty

  • The doctrine of preemption is a key aspect of the balance of power between the federal government and the states in the U.S. system of government
  • While preemption allows the federal government to ensure the uniformity and consistency of national policies, it also raises concerns about the erosion of state sovereignty and the ability of states to address local issues

Preemption as a limit on state power

  • Preemption restricts the ability of states to pass laws and implement policies that conflict with federal law
    • States must comply with federal regulations and standards in areas where federal law has preempted state law
    • This can limit the ability of states to address local concerns or experiment with innovative policies
  • Critics argue that the expansion of federal preemption has led to a centralization of power in the federal government and a diminution of state autonomy
    • Some view this as a violation of the Tenth Amendment, which reserves powers not delegated to the federal government to the states or the people

Arguments for state sovereignty

  • Proponents of state sovereignty argue that the states should have the primary authority to regulate local issues and address the needs of their citizens
    • They contend that state governments are more responsive to local concerns and better equipped to tailor policies to the specific circumstances of their states
  • Some advocates of state sovereignty view federal preemption as an infringement on the principles of federalism and a threat to the diversity and experimentation that are hallmarks of the U.S. system of government
    • They argue that allowing states to serve as "laboratories of democracy" can lead to the development of innovative policies that can be adopted by other states or the federal government
  • Defenders of state sovereignty also point to the importance of preserving local control over issues such as education, land use, and criminal justice, which have traditionally been within the purview of state and local governments

Preemption in specific areas

  • Federal preemption has a significant impact on various areas of law and policy, ranging from immigration and environmental regulation to healthcare and consumer protection
  • Understanding the scope and implications of preemption in these areas is crucial for state lawmakers, businesses, and citizens

Preemption in immigration law

  • Federal law preempts most aspects of state immigration policy, as the regulation of immigration is considered a core federal responsibility
    • States are generally prohibited from enacting laws that discriminate against immigrants or interfere with federal immigration enforcement
    • However, states can play a role in certain areas, such as the issuance of driver's licenses and the provision of public benefits to immigrants
  • Key federal immigration laws, such as the Immigration and Nationality Act (INA) and the Immigration Reform and Control Act (IRCA), preempt conflicting state laws
    • For example, IRCA preempts state laws that impose sanctions on employers for hiring undocumented workers, as this is regulated by federal law
  • Recent state attempts to enforce immigration laws, such as Arizona's SB 1070, have been largely preempted by federal courts
    • The Supreme Court ruled in Arizona v. United States (2012) that several provisions of SB 1070, including a requirement that police check the immigration status of individuals they suspect are undocumented, were preempted by federal law

Preemption in environmental regulation

  • Federal environmental laws, such as the Clean Air Act (CAA) and the Clean Water Act (CWA), establish national standards for air and water quality and preempt conflicting state laws
    • States are required to implement and enforce these standards but can also adopt more stringent regulations with EPA approval
    • The CAA explicitly preempts state regulation of motor vehicle emissions, as this is considered a national issue requiring uniform standards
  • The Toxic Substances Control Act (TSCA) preempts state laws that attempt to regulate the use of certain chemicals, such as asbestos and lead-based paint
    • However, states can still regulate the disposal of these substances and the cleanup of contaminated sites
  • The Resource Conservation and Recovery Act (RCRA) establishes federal standards for the management of hazardous waste but allows states to develop their own programs if they are at least as stringent as the federal requirements
    • States can also impose additional requirements on the treatment, storage, and disposal of hazardous waste within their borders

Preemption in healthcare policy

  • Federal healthcare laws, such as the Affordable Care Act (ACA) and the Health Insurance Portability and Accountability Act (HIPAA), preempt conflicting state laws and establish national standards for health insurance and patient privacy
    • The ACA requires states to establish health insurance exchanges and expand Medicaid coverage but allows them flexibility in the design and implementation of these programs
    • HIPAA preempts state laws that provide less protection for patient privacy but allows states to enact more stringent regulations
  • The Employee Retirement Income Security Act (ERISA) preempts state laws that relate to employee benefit plans, including health insurance plans
    • This has limited the ability of states to regulate the content and administration of employer-sponsored health plans
    • However, ERISA does not preempt state laws that regulate insurance, banking, or securities, allowing states to impose certain requirements on health insurers operating within their borders
  • The Food, Drug, and Cosmetic Act (FDCA) preempts state laws that impose different or additional requirements on the labeling and marketing of prescription drugs and medical devices
    • This ensures that these products are regulated uniformly across the country and that manufacturers do not face conflicting state requirements
    • However, states can still regulate the practice of medicine and pharmacy within their borders, including the prescribing and dispensing of drugs