SUBPART E—Supplemental Type Certificates (§21.111 to §21.120)
- 21.111—Applicability.
- 21.113—Requirement of supplemental type certificate.
- 21.115—Applicable requirements.
- 21.117—Issue of supplemental type certificates.
- 21.119—Privileges.
- 21.120—Responsibility of supplemental type certificate holders to provide written permission for alterations.