BISMARCK, N.D. (AP) — Republican North Dakota Gov. Doug Burgum has signed a bill that will allow most adults to carry a concealed firearm without a permit.

Burgum signed the bill late Thursday night. It would allow people 18 and older to forgo background checks and classes that are now required.

The measure sailed through both houses of the GOP-led Legislature, with dissention largely among Democrats.

Supporters say the bill promotes constitutional rights and allows protection from criminals. Critics worry it could lead to more shootings as people with less training would be carrying weapons.

About a dozen states already have similar laws. The South Dakota Legislature this month approved a similar measure but GOP Gov. Dennis Daugaard vetoed it, saying his state’s gun laws are reasonable.