Concealed carry permit reciprocity only occurs when two or more states choose to honor the permits issued in the other state, according to the National Rifle Association Institute for Legislative Action. If the state chooses not to recognize a permit issued in another jurisdiction, it is illegal to carry concealed.
Gun laws vary widely, and concealed carry permit requirements are even more diverse, so travelers must research the laws in other states that they plan to visit, reports the NRA-ILA. This can be done by contacting the state's Attorney General's office. If a traveler plans to visit a state where her concealed carry permit is not recognized, she is still generally allowed to bring her weapon. However, she must abide by local laws that apply to people without CCW permits.
Some states, such as South Carolina, recognize only certain types of permits, according to the Augusta Chronicle. These laws often focus on the requirements for obtaining the permit. As of 2015, South Carolina only recognizes CCW permits issued by states that require a criminal background check and a course in firearms use and safety. Some states that do not generally recognize permits issued in other jurisdictions offer permits to non-residents instead. There are also states, such as North Carolina, that recognize any CCW permit issued in the United States, explains the North Carolina Department of Justice.