Any public library may discard over-duplicated, outdated, inappropriate, or worn library materials; provided, that such materials shall be marked clearly with the words: "Discarded, __________ public library" wherever the property label of such library appears. Such discarded materials may be given to other libraries or to nonprofit agencies, destroyed, offered for public sale, or traded to a vendor for future library material purchasing credits.
SDCL 14-2-49