The Illinois Library Association is a professional organization dedicated to the advancement of libraries and librarianship in the state of Illinois. It serves as a hub for library professionals, providing resources, advocacy, and support to enhance library services and promote literacy and education.

While specific details about the sustainability practices of the Illinois Library Association are not extensively documented, libraries in general are known for their efforts in promoting sustainable practices. This includes initiatives such as reducing paper usage through digital lending, promoting energy-efficient facilities, and encouraging community engagement in sustainability topics.

Libraries often play a crucial role in educating the public about environmental issues and sustainability, hosting events and providing resources that support these efforts. The Illinois Library Association likely supports these initiatives through its member libraries, fostering a culture of sustainability and environmental responsibility.