Given that marijuana is the most commonly used illicit drug among college students (A. M. Arria, Caldeira, Bugbee, Vincent, & O'Grady, 2013);(Palmer, McMahon, Moreggi, Rounsaville, & Ball, 2012);(Pinchevsky et al., 2012);(Primack et al., 2012), the increase in use and changing attitudes among Americans seems to mirror what Parker (2005) refers to as 'normalization,' or the course of how attitudes and behaviors with respect to illegal drugs and drug users change over time. With these changing attitudes and recent legalization of recreational marijuana in some states, the effects of this shift will eventually influence campus culture at colleges and universities in the United States. The purpose of this study was to examine how higher education professionals develop campus policies related to students' use of marijuana at the flagship institutions in states where recreational marijuana has been legalized. Through analysis of the federal and state laws along with the institutional policies pertaining to personal use of marijuana, and through interviews with higher education professionals, the researcher was better able to understand the obstacles and challenges institutions have faced when developing policies and procedures related to students' use of marijuana. The study found that marijuana use, possession, and distribution remain illegal for many college students, and violations of state laws can have serious consequences for students. The study also found that the legalization of recreational marijuana has not prompted to change institutional polices pertaining to students' use, possession, or distribution of marijuana. It is also unclear whether institutions of higher education have been in compliance with the Drug-Free School and Communities Act (DFSA) since the legalization of marijuana. Additionally, there is a lack of evidence-based research to support the harm-reduction intent behind the campus marijuana policies which are required by the DFSCA which makes educating students about these policies challenging for higher education professionals. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]