All currently enrolled Columbia University graduate students with a valid UNI (What's a UNI?) are eligible to enter the locker lottery. Graduate student lockers are assigned at the beginning of each academic year to lottery winners.

• Duplicate lottery entries will be discarded. Graduate student status will be verified for lottery entry.
• Only one locker may be assigned to a person.
• Students who have a study carrel space in Butler Library are not eligible for a locker unless special arrangements have been made.
• Lockers will be randomly assigned, no preferences considered.
• All lockers must use the lock supplied by the Library. These locks are the property of Butler Library and may not be removed.  Students will be charged for loss, theft or damage to these locks. The replacement cost for each lock is $20.00.
• Library staff will check lockers periodically for library books stored in your locker which have not been checked out.  If books stored in your locker have not been checked out, they will be returned to the stacks. In addition, you will forfeit your locker, and it will be reassigned to another student.
• Valuables should not be stored in lockers. 
• Columbia University Libraries is not liable for the loss, theft, or damage of material stored in lockers.
• Lockers may not be altered permanently.
• Lockers are non-renewable and must be emptied by the locker expiration date. Locker users who do not clear their lockers by that date will lose their locker privileges for one year. 
• After the locker expiration date, any library property left in a locker will be returned to the library. Abandoned personal items may be reclaimed from the Library Information Office (Butler 201) for two weeks from the locker expiration date.

To enter the lottery, you must agree to the above-stated terms and conditions.