Here are the steps.
1. Register as a voter if not done already. A Google search will reveal how to register electronically with your state. Typically, registration closes one month before the election.
2. Download a request for an absentee ballot. Again, Google is your friend. The signature of the voter is required on the request. So make sure your college student child makes the request, fill it out, and mail it in to the address specified on the form.
3. Your State will send an absentee ballot to your child’s address. Fill out the ballot. Last but not the least, send it in.
Note: you may need to instruct your college student child how to acquire postage stamps; and explain the concept of mail.
CONGRATULATIONS in advance.