The good news is that DSI CLEAR is happy to submit requests to publishers on your behalf. We do this as a normal course of business and have the processes down to a science. We usually hear back within a week or two, and have yet to see such a request rejected.
Please Note: Not all textbook publisher materials and services are accessible. Before using a file or online service, provided by a publisher, in your online course, please ensure it is fully accessible. For assistance with this, please submit an accessibility consultation request.
While textbook publishers are usually perfectly comfortable formally granting permission to share supplementary digital materials with students (via the process referenced above), they are extremely reticent to permit educators and support staff to modify their slides, outlines, notes, and other supplementary materials. We have asked more than one publisher for this permission and have been consistently denied. This is a matter of quality assurance on their part. If their name is on the materials, they want to control the quality of those materials. As such, please refrain from modifying slides and other publisher material.
If you are seeking permissions to use work of another academic or creative person, for an image, chart, PowerPoint, or content from a website or blog, you may have success reaching out with a permission request. This email permission template (Word) can be modified to fit your needs. Often, many peers/authors/artists are flattered to be asked, and will allow the limited use, and perhaps would ask only for a credit line or link back to their site or content. Important note: Save your permission email and response for your records.