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States adopting "shall-issue" concealed carry laws saw an increase in new licenses and a significant rise in denied licenses. This shift impacts public health and safety policies regarding firearm access.

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Area of Science:

  • Public Health
  • Criminology
  • Law and Policy

Background:

  • Concealed weapon carrying in public is increasing nationwide.
  • This study examines the link between this trend and state adoption of permissive concealed carry laws.

Purpose of the Study:

  • To investigate the association between state concealed carry-licensing laws and the rates of concealed weapon permits issued and denied.
  • To compare the impact of transitioning from a ban to a shall-issue law versus a may-issue to a shall-issue law.

Main Methods:

  • Analysis of state-level data from 31 U.S. states between 2002 and 2019.
  • Calculation of rates for licenses issued, denied, and newly issued per 100,000 residents.
  • Difference-in-differences methods comparing states with legal changes to those without.

Main Results:

  • States shifting from a ban to shall-issue laws saw a 2%-6% increase in new licenses.
  • These transitions were associated with a 75%-85% increase in license denials.
  • May-issue to shall-issue transitions resulted in fewer licenses awarded compared to ban to shall-issue transitions.

Conclusions:

  • State concealed carry licensing laws significantly influence permit rates.
  • These findings can inform public health and safety policies as states revise firearm regulations.