(1) Business hours are based on the identifiable needs of the university community as a whole and in consideration of the staff made available to support public service activities of the libraries.

(2) All libraries may close on legal and university holidays. Such closures are posted at the respective library locations seven days in advance.

(3) Unscheduled closures may be declared by the dean of university libraries or his/her designee, for the University of Washington libraries. The director of the Marian Gould Gallagher Law Library or his/her designee will have responsibilities for determining unscheduled closures for the Marian Gould Gallagher Law Library. Unscheduled closures will be due to staffing or physical plant problems beyond the libraries' control which constitute a threat to life, limb, essential creature comforts or utility of the facilities by users and staff.