; and (B) receives compensation for moving such dog in commerce. (4) Transfer The term transfer means a change of ownership or control of an imported dog to another person, including by sale, adoption, exchange, or donation. (b) Requirements (1) In general Except as provided in paragraph (2), no person shall import a dog into the United States unless prior to transport to the United States, the Secretary receives electronic documentation necessary, as determined by the Secretary, to demonstrate that the dog— (A) is in good health; (B) has received all necessary vaccinations and internal and external parasite treatment, and demonstrated negative test results, as required by the Secretary and evidenced by a certificate that— (i) is issued by a licensed veterinarian accredited by a competent veterinary authority recognized by the Secretary; and (ii) is endorsed by that authority in a manner representing that the veterinarian issuing the certificate was authorized to do so; (C) is officially identified by a permanent method approved by the Secretary; and (D) in the case that the dog is intended for transfer— (i) is at least 6 months old; and (ii) is accompanied by an import permit issued by the Secretary under this Act. (2) Exceptions The Secretary, by regulation, shall provide an exception to any requirement under this Act in any case in which a dog is imported for purposes of transfer— (A) as a personal pet of United States origin returning to the United States; (B) as a United States military working dog or contracted working dog supporting a military mission or tasking; (C) for research purposes; (D) for veterinary treatment which is paid for by the importer, subject to the condition that the dog— (i) is taken directly to a veterinary facility for treatment with appropriate quarantine until the dog meets the criteria described in paragraph (1); and (ii) is then exported to its country of origin