(1) The library department acquires materials by gift, exchange and purchase. The highest priorities are to secure all significant printed materials related to the history of Montana and to the history of the surrounding geographical region insofar as that impacts on Montana.

(2) Donations should be unconditional whenever possible, permitting the society to retain, exchange, discard or sell an item as it sees fit. For donations which are substantial in amount of material or of significant monetary value, or are accepted despite restrictions by the donor, a deed of gift will be drafted by the library staff and signed by the donor.

(3) No materials will be accepted on loan except for copying or microfilming for the length of time required for such copying, or for a temporary display or exhibit.