The website suggests:
This award recognizes individuals whose long history of service to the campus, State University, local community or professional societies/organizations sets them apart as well as those who have demonstrated extraordinary leadership in local or system-wide faculty governance.

You can read the full description of his excellent works, but you’ll notice that one reason he is receiving this award is of particular interest:

[Al] works with the Center for Learning and Teaching and the Institute for Student-Centered Learning. Vos, campus organizer and coordinator of the Books for Africa campaign, also contributes time and expertise to other community initiatives.

Congratulations, Al, you’ve always been a committed and excellent representative of Better World Books and Books for Africa, and this award is well deserved!