TCNJ's drug and alcohol regulations enforce the school's concern to educate students about the harm of irresponsible substance use, to maintain students' mental and physical health, provide guidelines for responsible usage, and to provide assistance to those at risk for substance abuse. TCNJ's program follows and complies with local, state, and federal procedures for dealing with alcohol and illicit substance abuse. The usage of alcohol or carrying it in open containers is prohibited openly on the TCNJ campus, unless the individual has an alcohol permit. Drinking in nonresidential facilities on campus is prohibited, unless at a College-sponsored social event. Legal restrictions include the prohibition of the consumption or possession of alcohol by individuals under 21 years of age, buying or holding alcohol for those under the age of 21, and selling alcohol.
TCNJ's social scene is mostly composed of events hosted by social fraternities and sororities, as well as cultural groups and student clubs. The former two are the most popular for most students; the Greek organizations often host open, selective invitation, and recruitment parties on Tuesday, Friday, and Saturday nights. At these off-campus venues, drug usage is common, and alcohol is almost always present and used. There are measures that ensure drunk driving and over-intoxication cannot occur, but there have been unfortunate exceptions.