National Conference of State Legislatures
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Guns on Campus: Overview
In 2011, 18 states introduced legislation to allow concealed carry weapons on campus in some regard. Two bills passed, one in Mississippi and one in Wisconsin. The Mississippi legislation creates an exception to allow those who have taken a voluntary course on safe handling and use of firearms by a certified instructor to carry on campuses. The Wisconsin legislation creates a provision that colleges and universities must allow concealed carry on campus grounds, however, campuses can prohibit weapons from campus buildings if signs are posted at every entrance explicitly stating that weapons are prohibited. In 2012, 16 states introduced legislation to allow concealed carry - two bills are still pending and all others have failed to pass.
In 2012, 3 states introduced legislation to prohibit concealed carry weapons on campus. None of these bills passed.
Read Lots More at the link aboveIn the United States, 49 out of 50 states have concealed carry weapons laws. Currently, there are 21 states that ban carrying a concealed weapon on a college campus: Arkansas, California, Florida, Georgia, Louisiana, Massachusetts, Michigan, Missouri, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, South Carolina, Tennessee, Texas, and Wyoming.
In 24 states the decision to ban or allow concealed carry weapons on campuses is made by each college or university individually: Alabama, Alaska, Arizona, Connecticut, Delaware, Hawaii, Idaho, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Minnesota, Montana, New Hampshire, Oregon, Pennsylvania, Rhode Island, South Dakota, Vermont, Virginia, Washington, and West Virginia.
Due to recent state legislation and court rulings, 5 states now have provisions allowing the carrying of concealed weapons on public postsecondary campuses. These states are Colorado, Mississippi, Oregon, Utah, and Wisconsin.
Since each Texas University can grant written permission to carry, which over-rides the general prohibition, as Nevada Universities can, one could list them in the "up to each University" category, but they included them in the the "default" "they are banned" (unless permission is obtained, which was originally not given to Amanda Collins) category.