Federal law requires school and district websites to be accessible to people with disabilities. Section 508 of this law spells out requirements. For example, school and district websites are required to offer a text alternative for all images. School
Loop websites automatically create "alt" tags for all images, and will help you comply with all other Section 508 requirements.
Is your website compliant? See for yourself. Cut and paste your url here, or test any of ours:
http://www.section508.info/