Don't show this message again
§ 600.509-12 Voluntary submission of additional data.
(a) The manufacturer may optionally submit data in addition to the data required by the Administrator.
(b) Additional fuel economy and carbon-related exhaust emissions data may be submitted by the manufacturer for any vehicle configuration which is to be tested as required in § 600.507 or for which fuel economy and carbon-related exhaust emissions data were previously submitted under paragraph (c) of this section.