Part 21: Certification Procedures for Products and Articles
Subpart A—General
- 21.1 - Applicability and definitions.
- 21.2 - Falsification of applications, reports, or records.
- 21.3 - Reporting of failures, malfunctions, and defects.
- 21.4 - ETOPS reporting requirements.
- 21.5 - Airplane or Rotorcraft Flight Manual.
- 21.6 - Manufacture of new aircraft, aircraft engines, and propellers.
- 21.7 - Continued airworthiness and safety improvements for transport category airplanes.
- 21.8 - Approval of articles.
- 21.9 - Replacement and modification articles.
Subpart B—Type Certificates
- 21.11 - Applicability.
- 21.13 - Eligibility.
- 21.15 - Application for type certificate.
- 21.16 - Special conditions.
- 21.17 - Designation of applicable regulations.
- 21.19 - Changes requiring a new type certificate.
- 21.20 - Compliance with applicable requirements.
- 21.21 - Issue of type certificate: normal, utility, acrobatic, commuter, and transport category aircraft; manned free balloons; special classes of aircraft; aircraft engines; propellers.
- 21.23 - [Reserved]
- 21.24 - Issuance of type certificate: primary category aircraft.
- 21.25 - Issue of type certificate: Restricted category aircraft.
- 21.27 - Issue of type certificate: surplus aircraft of the Armed Forces.
- 21.29 - Issue of type certificate: import products.
- 21.31 - Type design.
- 21.33 - Inspection and tests.
- 21.35 - Flight tests.
- 21.37 - Flight test pilot.
- 21.39 - Flight test instrument calibration and correction report.
- 21.41 - Type certificate.
- 21.43 - Location of manufacturing facilities.
- 21.45 - Privileges.
- 21.47 - Transferability.
- 21.49 - Availability.
- 21.50 - Instructions for continued airworthiness and manufacturer’s maintenance manuals having airworthiness limitations sections.
- 21.51 - Duration.
- 21.53 - Statement of conformity.
- 21.55 - Responsibilities of type certificate holders who license the type certificate.
Subpart C—Provisional Type Certificates
- 21.71 - Applicability.
- 21.73 - Eligibility.
- 21.75 - Application.
- 21.77 - Duration.
- 21.79 - Transferability.
- 21.81 - Requirements for issue and amendment of Class I provisional type certificates.
- 21.83 - Requirements for issue and amendment of Class II provisional type certificates.
- 21.85 - Provisional amendments to type certificates.
Subpart D—Changes to Type Certificates
- 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.
Subpart E—Supplemental Type Certificates
- 21.111 - Applicability.
- 21.113 - Requirement for 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.
Subpart F—Production Under Type Certificate
- 21.121 - Applicability.
- 21.122 - Location of or change to manufacturing facilities.
- 21.123 - Production under type certificate.
- 21.125 - [Reserved]
- 21.127 - Tests: aircraft.
- 21.128 - Tests: aircraft engines.
- 21.129 - Tests: propellers.
- 21.130 - Statement of Conformity.
Subpart G—Production Certificates
- 21.131 - Applicability.
- 21.132 - Eligibility.
- 21.133 - Application.
- 21.135 - Organization.
- 21.137 - Quality system.
- 21.138 - Quality manual.
- 21.139 - Location of or change to manufacturing facilities.
- 21.140 - Inspections and tests.
- 21.141 - Issuance.
- 21.142 - Production limitation record.
- 21.143 - Duration.
- 21.144 - Transferability.
- 21.145 - Privileges.
- 21.146 - Responsibility of holder.
- 21.147 - Amendment of production certificates.
- 21.150 - Changes in quality system.
Subpart H—Airworthiness Certificates
- 21.171 - Applicability.
- 21.173 - Eligibility.
- 21.175 - Airworthiness certificates: classification.
- 21.177 - Amendment or modification.
- 21.179 - Transferability.
- 21.181 - Duration.
- 21.182 - Aircraft identification.
- 21.183 - Issue of standard airworthiness certificates for normal, utility, acrobatic, commuter, and transport category aircraft; manned free balloons; and special classes of aircraft.
- 21.184 - Issue of special airworthiness certificates for primary category aircraft.
- 21.185 - Issue of airworthiness certificates for restricted category aircraft.
- 21.187 - Issue of multiple airworthiness certification.
- 21.189 - Issue of airworthiness certificate for limited category aircraft.
- 21.190 - Issue of a special airworthiness certificate for a light-sport category aircraft.
- 21.191 - Experimental certificates.
- 21.193 - Experimental certificates: general.
- 21.195 - Experimental certificates: Aircraft to be used for market surveys, sales demonstrations, and customer crew training.
- 21.197 - Special flight permits.
- 21.199 - Issue of special flight permits.
Subpart I—Provisional Airworthiness Certificates
- 21.211 - Applicability.
- 21.213 - Eligibility.
- 21.215 - Application.
- 21.217 - Duration.
- 21.219 - Transferability.
- 21.221 - Class I provisional airworthiness certificates.
- 21.223 - Class II provisional airworthiness certificates.
- 21.225 - Provisional airworthiness certificates corresponding with provisional amendments to type certificates.
Subpart J—[Reserved]
Subpart K—Parts Manufacturer Approvals
- 21.301 - Applicability.
- 21.303 - Application.
- 21.305 - Organization.
- 21.307 - Quality system.
- 21.308 - Quality manual.
- 21.309 - Location of or change to manufacturing facilities.
- 21.310 - Inspections and tests.
- 21.311 - Issuance.
- 21.313 - Duration.
- 21.314 - Transferability.
- 21.316 - Responsibility of holder.
- 21.319 - Design changes.
- 21.320 - Changes in quality system.
Subpart L—Export Airworthiness Approvals
- 21.321 - Applicability.
- 21.325 - Export airworthiness approvals.
- 21.327 - Application.
- 21.329 - Issuance of export certificates of airworthiness.
- 21.331 - Issuance of export airworthiness approvals for aircraft engines, propellers, and articles.
- 21.335 - Responsibilities of exporters.
Subpart M—[Reserved]
Subpart N—Acceptance of Aircraft Engines, Propellers, and Articles for Import
Subpart O—Technical Standard Order Approvals
- 21.601 - Applicability and definitions.
- 21.603 - Application.
- 21.605 - Organization.
- 21.607 - Quality system.
- 21.608 - Quality manual.
- 21.609 - Location of or change to manufacturing facilities.
- 21.610 - Inspections and tests.
- 21.611 - Issuance.
- 21.613 - Duration.
- 21.614 - Transferability.
- 21.616 - Responsibility of holder.
- 21.618 - Approval for deviation.
- 21.619 - Design changes.
- 21.620 - Changes in quality system.
- 21.621 - Issue of letters of TSO design approval: Import articles.