ESTABLISHING A NORM: 20 States Now Have Constitutional Carry. “The number of states joining those with constitutional carry has grown quickly in 2021. On Feb. 18 Montana Gov. Greg Gianforte signed House Bill 102 into law, allowing constitutional carry for state residents. Iowa became the 19th state to enroll on April 2. The measures become effective June 1 and July 1, respectively. The other 17 states with constitutional carry laws are Alaska, Arizona, Arkansas, Idaho, Kansas, Kentucky, Maine, Mississippi, Missouri, New Hampshire, North Dakota, Oklahoma, South Dakota, Utah (effective May 5), Vermont, West Virginia and Wyoming. The merits of similar or nearly identical measures are currently being considered by a number of other state legislatures.”