CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 97—FEDERAL NO X BUDGET TRADING PROGRAM AND CAIR NO X AND SO 2 TRADING PROGRAMS > SUBPART J—Appeal Procedures (§97.90 to §97.90) > 97.90—Appeal procedures.