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The decision comes after a landmark U.S. Supreme Court decision on the Second Amendment that has upended gun laws across the country, dividing judges and sowing confusion over what firearm restrictions can remain on the books. It changed the test that lower courts had long used for evaluating challenges to firearm restrictions, telling judges that gun laws must be consistent with the “historical tradition of firearm regulation.”

Oregon voters in November Measure 114, which requires residents to undergo safety training and a background check to obtain a permit to buy a gun.

The legislation also bans the sale, transfer or import of gun magazines with more than 10 rounds unless they are owned by law enforcement or a military member or were owned before the measure’s passage. Those who already own high-capacity magazines can only possess them at home or use them at a firing range, in shooting competitions or for hunting as allowed by state law after the measure takes effect.

Large capacity magazines “are not commonly used for self-defense, and are therefore not protected by the Second Amendment,” Immergut wrote. “The Second Amendment also allows governments to ensure that only law-abiding, responsible citizens keep and bear arms.”

The latest ruling in U.S. District Court is , potentially moving all the way up to the U.S. Supreme Court.

The Oregon measure’s fate has been carefully watched as one of the first new gun restrictions passed since the .