The Autism Speaks Transition Tool Kit was created to serve as a guide to assist families on the journey from adolescence to adulthood.
It can be used by anyone with special needs of any type to take the journey and not forget any steps along the way.
It is a long 100 plus page guide but save it as a PDF on your computer to access the parts you need when you need it.
To download click on:
http://www.autismspeaks.org/community/family_services/transition.php
At this site you can also request a hard copy if your child is age 14 -22.
States have different timelines and there is another resource guide on the same page for each state along with an online appendix.