A guest of Grinnell College is defined as any non-Grinnell College student, non-parent visitor who stays on campus overnight or attends a college event not open to the public. Members of the campus community who sponsor guests must accept full responsibility for their behavior. A student may host up to four guests at once. Guests may not stay overnight more than eight nights per semester, unless approved by a Student Affairs dean. Students who wish to have guests stay in their college-owned housing must check with their roommates for approval and register their guests with the Campus Safety and Security Department. Guests 17 years old and younger are not allowed to stay overnight in residence halls unless authorized by a Student Affairs dean. Unescorted guests 17 years old and younger are not allowed in the residence halls, campus parties, Joe Rosenfield '25 Center, or Harris Center (except for events open to the general public in the Joe Rosenfield '25 Center and Harris Center) without the approval of a Student Affairs dean. Prospective students must be registered with the Office of Admission.

Campus Safety and Security issues guest passes to student guests. The guest pass serves as a campus ID for the guest. Guests must show a valid photo ID that includes the guest's birthdate. Student Affairs issues guest passes for guests under the age of 18. These passes require a dean's signature and must be obtained Monday through Friday, 8:00-5:00. Prospective students will receive their guest pass from the Office of Admission.

Guests are required to carry their guest pass with them at all times while on campus. To attend any event not open to the public, a guest may be asked to show both the guest pass and another form of identification. At any event where alcohol is served, the guest must show picture identification, such as a valid driver's license, showing he/she is 21 years or older in order to be served alcohol. Any guests under 18 (including prospectives) are not allowed to attend any event where alcohol is served.

Grinnell College students are not considered guests. In the event of a lost student I.D., the Grinnell College student must show a valid, government issued photo identification which will be cross referenced by Harris staff prior to gaining entrance into the event.

Guests may be asked to leave at any time by any Student Affairs staff member. Guests are required to show their guest passes when asked, and must follow campus regulations and policies. Unregistered overnight guests may be asked to leave campus.