50 CFR § 12.34 - Return to the wild.
(a) Any live member of a native species of wildlife which is capable of surviving may be released to the wild in suitable habitat within the historical range of the species in the United States with the permission of the landowner, unless release poses an imminent danger to public health or safety.
(b) Any live member of a native species of plant which is capable of surviving may be transplanted in suitable habitat on Federal or other protected lands within the historical range of the species in the United States with the permission of the landowner.
(c) Any live member of an exotic species of wildlife (including injurious wildlife) or plant may not be returned to the wild in the U.S., but may be returned to one of the following countries for return to suitable habitat in accordance with the provisions of § 12.35 of this part if it is capable of surviving:
(1) The country of export (if known) after consultation with and at the expense of the country of export, or
(2) A country within the historic range of the species which is party to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (TIAS 8249) after consultation with and at the expense of such country.