; (B) may not modify the purpose of any safety standard; and (C) may specify different references for— (i) dedicated highly automated vehicles that are intended for human occupancy; and (ii) dedicated highly automated vehicles that are not designed, intended, or marketed for human occupancy. (d) Rulemaking (1) Commencement Not later than 90 days after the date on which the Director or designated entity submits the report under subsection (b), the Secretary shall commence a rulemaking proceeding to incorporate the report by reference into the relevant safety standards, except as provided in paragraph (3). (2) Final rule Not later than 1 year after the Director or other entity submits the report under subsection (b), the Secretary shall issue a final rule to incorporate the report by reference into the relevant safety standards, except as provided in paragraph (3). (3) Alternative text If the Secretary determines that one or more of the revisions to a regulation contained in the report submitted under subsection (b) is not objective, is not practicable, or does not meet the need for motor vehicle safety, the Secretary shall incorporate alternative regulatory text. (4) Incorporation by reference If the Secretary does not complete the rulemaking proceeding under this subsection within 1 year after the submission of the report under subsection (b), the revisions to regulations contained in such report shall be incorporated by reference into the relevant safety standards. (e) Savings provision Nothing in this section may be construed to prohibit the Secretary from maintaining different test procedures for highly automated vehicles that retain the capability to be operated by a human driver when such vehicles are not operating in an automated mode. 5. Highly automated vehicles testing Section 30112(b) of title 49, United States Code, is amended— (1) in paragraph (9), by striking or at the end