Is the title attribute for links required for 508 compliance or does the text in the link suffice?
Thanks!
The current Section 508 standards don't include any explicit requirements related to links.
An update of these standards is in the works, and may align the standards with WCAG 2.0. WCAG 2.0 simply requires that the purpose of each link be clear to users.
The best way to make a link's purpose clear is via meaningful link text. It's ok to supplement link text with a title attribute if doing so adds clarity, but it's not required, and the information in the title attribute should not be essential because if link text and a title attribute are both present, screen readers typically read the text by default and ignore the title.
There's additional information from the W3C at Understanding SC 2.4.4 (Link Purpose) and H33: Supplementing link text with the title attribute.