Abstract A growing concern in the medical and mental health field is the relationship between marijuana use and further illicit drug abuse. Due to the recent state laws passing in Washington and Colorado, there has been a need for a study to address the accessibility factor in relations to the “gateway hypothesis” to marijuana. The fear is that the increase in accessibility of marijuana will result in an increase of substance abuse and dependency. Therefore, this study is intended to address the following research question: Is the increased accessibility of marijuana correlated with the increase use of marijuana and other illicit drug use. Additionally, this proposal will address the gap in the literature, sample and instrument used, and the findings….