Right now the only way to let students and librarians know you are using low/no cost materials is by reporting them through the "Adopt Your Textbooks" form on the Duck Store website. This Textbook and Course Material Affordability page will walk you through reporting course materials.
You can meet with the OER librarian or OER specialist and get support finding OER, adopting OER or adapting/creating OER. If you have any questions about how you can use OER or find resources that meet your needs you can request a consultation. You will be directed to a short form where you can tell us a little about the kind of support you need and sign up for a meeting slot.
This guide is adapted from Open Educational Resources (OER), by Abbey Elder and Iowa State University Library, which is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)