The Secretary shall have 90 days to review and approve or deny a registration submitted under paragraph (2). If the Secretary determines that any such registration submitted is incomplete, the Secretary shall have an additional 30 days for review. Any registration not approved or denied within 90 days after initial submission, or 120 days if the registration submitted is incomplete, shall be deemed approved. The Secretary shall have the authority to revoke an existing registration based on a failure to comply with requirements set forth in this subsection or a finding by the Secretary of a safety-related defect
or unlawful conduct under this chapter that poses a significant safety risk. The registrant shall be provided a reasonable opportunity to correct all deficiencies, if such are correctable based on the sole discretion of the Secretary. An exemption granted by the Secretary to a low-volume manufacturer
under this subsection may not be transferred to any other person, and shall expire at the end of the calendar year for which it was granted with respect to any volume authorized by the exemption that was not applied by the low-volume manufacturer
to vehicles built during that calendar year. The Secretary shall maintain an up-to-date list of registrants and a list of the make and model of motor vehicles
exempted under paragraph (1) on at least an annual basis and publish such list in the Federal Register or on a website operated by the Secretary.