Changes to existing headings are necessary in order to maintain currency and viability of the subject headings list. On the other hand, the impact of changes on existing bibliographic records and the demands on personnel and resources in recataloging are also weighed in considering changes in an effort to maintain a balance between the need for change and the need for stability.

3.6 References

See also:

3.0 Fundamental principles of Library of Congress Subject Headings