WASHINGTON — The Supreme Court on Thursday struck down a Hawaii gun restriction that limits when people can carry firearms on certain private properties open to the public, saying it infringes on the right to bear arms.

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On a 6-3 vote, the court invalidated the measure that requires people with concealed carry permits to seek permission from a property owner before entering. It has been dubbed the “vampire rule” because, as in the classic novel “Dracula” and related tales, vampires can only enter someone’s home if they are invited in.

The court, often supportive of gun rights, concluded that the provision violates the Constitution’s Second Amendment.

The ruling is somewhat limited in its practical impact because most states do not have provisions similar to Hawaii’s. In the majority of the country, the law already assumes that people can enter private properties while armed if they have a permit to carry a firearm.

As a result, the ruling will only affect a handful of states that took a similar approach to Hawaii: New York, New Jersey, Maryland and California.

Enacted in 2023 as part of a broader gun law, the Hawaii rule applies to private properties open to the public like gas stations, stores and restaurants. Anyone who violates the rule could face up to a year in prison.

Other provisions of the law were also challenged and have been partly blocked by lower courts.

Maui residents Jason Wolford, Alison Wolford and Atom Kasprzycki, who are gun owners with concealed carry licenses, as well as the Hawaii Firearms Coalition, a gun rights group, challenged the law in court. At the Supreme Court, they received backing from the Trump administration.

A federal judge earlier blocked the private property provision, but the San Francisco-based 9th U.S. Circuit Court of Appeals ruled in the state’s favor in September 2024.

In court papers, the challengers said the vampire rule was in conflict with the Supreme Court’s 2022 ruling that established, for the first time, that Americans have a right to carry a firearm in public.