The eighteen year old has been gone from the home of her mother since age 16 and needs Birth Cert to get Social Security Card in order to get an Indiana Identification Card
In Indianapolis, you can go downtown to the Indiana Department of Health and request a copy of your birth certificate. You may want to call them in advance for costs and availability, location, etc. Then, you can go to your local social security administration office, such as the one at 575 N. Pennsylvania downtown for your social security card (free).
Advice on this forum is for informational purposes only and should never be mistaken as a substitute for legal advice. If you are in need of legal advice, you should consult local legal counsel.