CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS > SUBPART FF—New Jersey (§52.1570 to §52.1607) > 52.1583—Requirements for state implementation plan revisions relating to new motor vehicles.