The Supreme Court’s decision overturning a gun-permitting law in New York has states with robust firearms restrictions scrambling to respond on two fronts — to figure out what concealed-carry measures they might be allowed to impose while also preparing to defend a wide range of other gun control policies.

The language in the court’s majority opinion heightened concern that other state laws, from setting an age limit on gun purchases to banning high-capacity ammunition magazines, may now be in jeopardy.

“The court has basically invited open season on our gun laws, and so I expect litigation across the board,” said New Jersey acting Attorney General Matt Platkin, a Democrat. “We’re going to defend our gun laws tooth-and-nail because these gun laws save lives.”

The court ruling issued Thursday specifically overturned a New York law that had been in place since 1913 and required that people applying for a concealed carry permit demonstrate a specific need to have a gun in public, such as showing an imminent threat to their safety. The court’s conservative majority said that violated the Second Amendment, which they interpreted as protecting people’s right to carry a gun for self-defense outside the home.

While the ruling does not address any other laws, the majority opinion opens the door for gun rights advocates to challenge them in the future, said Alex McCourt, the director of legal research for the Johns Hopkins Center for Gun Violence Solutions.

Pro-firearms groups in several states said they plan to do just that.

Attorney Chuck Michel, president of the California Rifle and Pistol Association, said the group is preparing to expand its legal challenges based on the high court changing the legal standard used to assess whether gun control laws are constitutional.

Courts must now consider only whether a gun control regulation is consistent with the Second Amendment’s actual text and its historical understanding, according to Thursday’s ruling. Before that, judges also could consider a state’s social justification for passing a gun control law.

Michel said the standard will affect three prominent California laws. Legal challenges to the state’s limits on assault weapons, its requirement for background checks for buying ammunition and its ban on online ammunition sales are pending before a federal appellate court.