The National Rifle Association and the Second Amendment Foundation are challenging Seattle’s recently passed gun-safety law that requires gun owners to lock up their firearms, by filing suit against the city, KOMO News reports.

The details: Under the measure, a gun owner can be fined up to $500 if the firearm isn’t properly stored, up to $1,000 if a minor or an unauthorized user accesses the weapon and up to $10,000 if someone uses it to commit a crime or cause injury. But the gun lobby groups claim, in the lawsuit filed last week, that state law prohibits cities and other municipalities from enacting gun law legislation that exceeds its authority, per KOMO News.