A few years ago I wrote out the specs for the vendors who do our ebook conversions. This is a somewhat more limited domain than most web sites, but still, from the beginning I insisted on proper semantic markup, aria tags, etc. It was clear then that the reckoning would be coming. In fact, our vendor recently added DAISY validation, and we were the only client who didn't have to change specs. Now the university is handing down mandates, and how much do I have to do now? Nothing.