; and (ii) by the conclusion of such 72 hours, return any such controlled substance so transported but not administered to the registered location from which such substance was obtained. (C) (i) The practitioner must maintain records of the transporting and administering of any controlled substance pursuant to this subsection. (ii) Such records shall be maintained, in accordance with the requirements of section 307(b), at the practitioner’s registered location from which the controlled substances were obtained and shall include— (I) the location where the controlled substance was administered; and (II) such other information as may be required by regulation of the Attorney General with respect to records for dispensers of controlled substances. (iii) Notwithstanding clause (ii), the exception in subsection 307(c)(1)(B) shall not apply to records required by this subparagraph. (3) Grounds for denial or revocation The Attorney General may deny an application for registration under this subsection, or a renewal thereof, or revoke such registration, based on the criteria listed in section 304(a), except that the applicant shall not be required, as a condition of initially obtaining such registration, to present proof of State authorization to administer controlled substances. (4) Automatic termination A registration issued under this subsection shall automatically terminate if the practitioner no longer has an active registration under subsection (f) due to revocation, suspension, surrender, or other termination. (5) Definition In this subsection, the term registered location means, with respect to each registration issued to a practitioner under subsection (f), the address that appears on the certificate of registration. .