Your state may operate an Advance Directive Registry. Please see below to find out if you live in one of those states.

Arizona
Fee: none
Where to go: Web: https://www.azsos.gov/Adv_Dir/
Phone: 602-542-6187 or Toll Free: 800-458-5842
 

California
Fee: $10
Where to go Web: http://www.sos.ca.gov/ahcdr/
Phone: (916) 653-3984
 

Idaho
Fee: none
Where to go: Web: http://www.sos.idaho.gov/general/hcdr.htm
Phone: (208) 332-2814
 

Louisiana
Fee: $20
Where to go: Web: http://www.sos.louisiana.gov/tabid/208/Default.aspx 
(instructions only to send into the Secretary of State’s Office)
Phone: (225) 922-0309
 

Montana
Fee: none
Where to go: Web: https://app.mt.gov/registry/
Phone: (406) 444-0660 or (866) 675-3314
 

Nevada
Fee: none
Where to go: Web: http://nvsos.gov/online/nadr/
Phone: (775) 684-5708
 

North Carolina
Fee: $10
Where to go: Web: http://www.secretary.state.nc.us/ahcdr/
Phone: 919-807-2167
 

Vermont
Fee: none
Where to go: Web: http://healthvermont.gov/vadr/index.aspx
Phone: 908-325-2525
 

Washington
Fee: free
Where to go: Web: http://www.doh.wa.gov/livingwill/
Phone: 360-236-4369 or toll free 800-525-0127