This standard covers evaluating the library's collection.
I. Standard A
“The library's collection is continually evaluated for additions and deletions based on the library's collection management policy.”
To meet this standard a library should continue to add and weed materials from its collection. Numerous online courses can assist librarians in collection assessment, development and maintenance. Learning lists online, self-paced courses that might assist you.
Source: 10.102.1150J Public Library Standards: Collection Evaluation