In 1983, the Association of Research Libraries adopted as its third principal objective for a 5-year plan: "to increase the number of member libraries engaged in programs to preserve their collections." ARL efforts to achieve this objective are aimed at helping libraries meet this responsibility locally and these guidelines propose an…

A broad international perspective is taken in this examination of the objectives of national repository planning; general principles on which a plan should be based; selection for national retention; criteria by which alternative national systems should be judged; and the main alternative models assessed against these criteria. (5 references) (CLB)