SUBPART D—Changes to Type Certificates (§21.91 to §21.101)
- 21.91—Applicability.
- 21.93—Classification of changes in type design.
- 21.95—Approval of minor changes in type design.
- 21.97—Approval of major changes in type design.
- 21.99—Required design changes.
- 21.101—Designation of applicable regulations.