Louisiana expressly prohibits the carrying of firearms on college campuses (including those by concealed carry weapons permit holders). See La. Rev. Stat. §§ 14:95.2, 14:95.6
Disclaimer: Policies are subject to change at any time, both during and between school years. In addition, individual school policies commonly include more details than can be succinctly captured by ArmedCampuses.org. Each school should be consulted for its most accurate, up-to-date policy.