The legal doctrine of sovereign immunity limits the circumstances under which a private person or entity (a nongovernmental unit) may sue a state government or the federal government. Sovereign immunity in the United States was derived from the English common law policy (from Great Britain) that the king (the sovereign) could do no wrong and should not be held to account by his subjects (the people).

Current legal theory also relies on sovereign immunity to protect the public treasury (the fisc) from unlimited claims.

Many states have laws (statutes) known as tort claims acts that waive the government’s immunity in whole or in part for certain specified claims and allow private parties (persons or entities) to sue the government for torts (wrongful acts) committed by persons acting on behalf of the government. In some instances, tort claims acts waive sovereign immunity for claims against the government for personal injuries (as well as for property damage).

And the U.S. Congress has passed a law (a statute) known as the Federal Tort Claims Act that waives the federal government’s immunity for certain claims and allows private parties (persons or entities) to sue the federal government for torts (wrongful acts) committed by persons acting on behalf of the federal government. The Federal Tort Claims Act is located in the United States Code, beginning at 28 U.S.C. §2674.

Lawsuits against the federal government under the Federal Tort Claims Act must be filed in federal courts in the United States.

In Wyoming, as in other states, the doctrine of sovereign immunity generally prevents the state government from being sued without its consent. However, Wyoming has enacted the Wyoming Governmental Claims Act, which waives sovereign immunity in certain situations, allowing individuals to bring claims against the state for various torts committed by state employees within the scope of their employment. This waiver is subject to limitations and exceptions outlined in the Act. Similarly, at the federal level, the Federal Tort Claims Act (FTCA) allows for certain types of lawsuits against the United States government for wrongful acts committed by federal employees during their official duties. The FTCA specifies the conditions under which such claims can be brought and is codified beginning at 28 U.S.C. § 2674. Lawsuits under the FTCA must be filed in federal court. Both the Wyoming Governmental Claims Act and the FTCA aim to balance the need for government accountability with the protection of the public treasury from unlimited claims.