State Firearm Law Navigator
Research on the effects of gun laws requires good data on when and where different types of laws have been implemented.
To support this type of research, RAND maintains a longitudinal database of state firearm laws, available free to the public. This database was first released in 2018 and has been revised, updated, and expanded since then. This visualization was updated in August 2022 to include data from the period 1979–January, 2021.
Although the full database includes 20 classes of gun laws and many subcategories of these classes, this visualization illustrates just four: background check, child-access prevention, concealed-carry, and self-defense laws.
How it works: Select the type of gun law from the dropdown menu. Move the slider to select a date from 1979 to January, 2021. Click on a state to see the text of specific laws that were in effect in a given year.