Stock photo rights for a client under a larger organization
I am an Adobe CC paid subscriber, I volunteer and design for a non-profit (Master Gardeners) that is very careful about copyright. The non-profit is part of the University of California, which has their own contract with Adobe. As a volunteer, I signed a Volunteer Agreement that states, "UC Regents retains a non-exclusive license to use images, video, and educational content created by UC Master Gardener volunteers while acting as agents of UC."
Is it okay to use a free Adobe stock image for the UC Master Gardeners, knowng that ultimately, the usage license is between the Regents of the University of California and the issuer? I need to provide evidence of this in order to continue my work, can Adobe point me to where I can find this information or provide information that states this?
