Before 2018 , five states had some version of red flag laws . After the Stoneman Douglas High School shooting in Parkland , Florida , in 2018 , that number more than doubled , as more states enacted such laws : Florida , Vermont , Maryland , Rhode Island , New Jersey , Delaware , Massachusetts , Illinois , and Washington , D.C . Other state legislatures considered similar legislation . In 2019 , New York enacted a red-flag law as part of a broader package of gun-control legislation that overwhelmingly passed the state legislature . In addition to allowing police and family members to petition for entry of an extreme risk protection order , the law also allows teachers and school administrations to file such petitions , making New York the first state to include such a provision . Colorado passed House Bill 177 law in April 2019 . Nevada passed AB291 in June 2019 . Hawaii passed a red flag law in late June 2019
Stoneman Douglas High School shooting
Stoneman Douglas High School shooting
Red flag law