Which feature of federalism allows states to create their own laws?

State sovereignty is the feature of federalism that allows states to create their own laws. This principle recognizes that states have the authority to govern themselves and make decisions that are best suited to their unique populations and circumstances. This autonomy enables states to enact legislation on a wide range of issues, including education, transportation, and public safety, as long as those laws do not conflict with federal laws.

The concept of state sovereignty is enshrined in the U.S. Constitution, particularly through the Tenth Amendment, which reserves powers not delegated to the federal government for the states. This foundation provides states with the legal framework to legislate and operate independently in matters that fall outside federal jurisdiction.

In contrast, the other options involve aspects of governance that either limit state authority or manage the relationship between federal and state laws. Federal override pertains to the ability of the federal government to supersede state laws, while constitutional amendments involve changes to the Constitution that can affect both federal and state powers. Preemption authority relates to the principle that federal law can displace state law in specific areas, limiting state legislative power in those contexts.