§ 3372. Prohibited acts
(b) Marking offenses
It is unlawful for any person to import, export, or transport in interstate commerce any container or package containing any fish or wildlife unless the container or package has previously been plainly marked, labeled, or tagged in accordance with the regulations issued pursuant to paragraph (2) of section 3376(a) of this title. ((2) The Secretaries of the Interior and Commerce shall jointly promulgate specific regulations to implement the provisions of section 3372(b) of this title for the marking and labeling of containers or packages containing fish or wildlife. These regulations shall be
in accordance with existing commercial practices.)
§ 3377. Exceptions
The provisions of paragraph (2) of section 3372(a) of this title shall not apply to the interstate shipment or transshipment through Indian country as defined in section 1151 of Title 18 or
a State of any fish or wildlife or plant legally taken if the shipment is en route to a State in which the fish or wildlife or plant may be legally possessed.
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So, it would appear that if a person is transporting cornsnakes through Georgia, enroute to a State in which they may be legally possessed, that is legal, as long as they are in a container labeled in accordance with existing commercial practices.
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ECFR Title 50 Section 14 describes regulations for marking wildlife shipments.
Option One
(i) Conspicuously marking the outside of each container or package containing fish or wildlife with the word “fish” or “wildlife” as appropriate for its contents, or with the common name of its contents by species, and
(ii) Including an invoice, packing list, bill of lading, or similar document to accompany the shipment which accurately states the name and address of the shipper and consignee, states the total number of packages or containers in the shipment, and for each species in the shipment specifies:
(A) The common name that identifies the species (examples include: Chinook (or king) salmon; bluefin tuna; and whitetail deer) and whether or not the listed species is venomous; and
(B) The number of that species (or other appropriate measure of quantity such as gross or net weight).
The invoice, packing list, bill of lading, or equivalent document must be securely attached to the outside of one container or package in the shipment or otherwise physically accompany the shipment in a manner which makes it readily accessible for inspection;