PART 121—STATE CERTIFICATION OF ACTIVITIES REQUIRING A FEDERAL LICENSE OR PERMIT
- SUBPART A—General (§121.1 to §121.3)
- SUBPART B—Determination of Effect on Other States (§121.11 to §121.16)
- SUBPART C—Certification by the Administrator (§121.21 to §121.28)
- SUBPART D—Consultations (§121.30 to §121.30)