As of March 11, 2011, single women may now adopt Chinese children from China’s Special Needs System. This provides the requirements for application.
While not a legal document, this gives information regarding readoption and foreign birth certificates in the state of Texas. Legal resources are provided.
Families who have adopted from countries like China, Russia, Ethiopia and Ukraine will have a final adoption decree of their child from the foreign country.
Here you can see the waiting list for children who have special needs in China provided by the Chinese Center for Adoption Affairs.