Hearing ear dogs can be any breed or size. They are specially trained and many states have training programs. Listed below are some national programs that exist.
You should contact your state disabilities office to discover if a similar program exists. Normally there is a waiting list. Contact your local SPCA to find out additional details.
American Humane Association
PO Box 1266
Denver, CO 80231
303-695-0811
Canine Companions for Independence
PO Box 446
Santa Rosa, CA 95402
Canine Helpers for the Handicapped
5705 Ridge Road
Lockport, NY 14904
716-433-4035
Dogs for the Deaf
110175 Wheeler Rd.
Central Point, OR 97502
503-899-7177
National Hearing Dog Center
1116 S. Main
Athol, MA 01331
508-249-9264