MIAMI — Florida’s nickname has been the “Gunshine State” because of its decades-long efforts to loosen gun restrictions.

But on Friday, Gov. Rick Scott broke with the National Rifle Association and signed into law requirements to raise the minimum age and waiting period to purchase a gun. It was the most aggressive action on gun control taken in the state in many years, following the shooting of 17 students and staff last month at a high school.

The sweeping and bipartisan $400 million Marjory Stoneman Douglas High School Public Safety Act imposes new restrictions on firearm purchases and the possession of “bump stocks,” funds school police officers and mental health services, broadens law enforcement’s power to seize weapons, and allows certain staff to carry guns in schools.