((a)) ** .—** A person commits a violation if the person fails to comply with this chapter and regulations and standards prescribed and orders issued under this chapter (except sections 32902, 32903, 32908(b), 32917(b), and 32918 and regulations and standards prescribed and orders issued under those sections). The Secretary of Transportation shall conduct a proceeding, with an opportunity for a hearing on the record, to decide whether a person has committed a violation. Any interested person may participate in a proceeding under this subsection.
((b)) ** .—** A manufacturer of automobiles commits a violation if the manufacturer fails to comply with an applicable average fuel economy standard under . Compliance is determined after considering credits available to the manufacturer under . If average fuel economy calculations under indicate that a manufacturer has violated this subsection, the Secretary shall conduct a proceeding, with an opportunity for a hearing on the record, to decide whether a violation has been committed. The Secretary may not conduct the proceeding if further measurements of fuel economy, further calculations of average fuel economy, or other information indicates a violation has not been committed. The results of the measurements and calculations and the information shall be published in the Federal Register. Any interested person may participate in a proceeding under this subsection.