131 

SUBCHAPTER C—AIRCRAFT 

PART 21—CERTIFICATION PROCE-

DURES FOR PRODUCTS AND AR-
TICLES 

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

N

O

. 

88 

Subpart A—General 

Sec. 
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 im-

provements for transport category air-
planes. 

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 certifi-

cate. 

21.20

Compliance with applicable require-

ments. 

21.21

Issue of type certificate: normal, util-

ity, acrobatic, commuter, and transport 
category aircraft; manned free balloons; 
special classes of aircraft; aircraft en-
gines; 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 air-

craft of the Armed Forces. 

21.29

Issue of type certificate: import prod-

ucts. 

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 airworthi-

ness and manufacturer’s maintenance 
manuals having airworthiness limita-
tions sections. 

21.51

Duration. 

21.53

Statement of conformity. 

21.55

Responsibility of type certificate hold-

ers to provide written licensing agree-
ments. 

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 amend-

ment of Class I provisional type certifi-
cates. 

21.83

Requirements for issue and amend-

ment of Class II provisional type certifi-
cates. 

21.85

Provisional amendments to type cer-

tificates. 

Subpart D—Changes to Type Certificates 

21.91

Applicability. 

21.93

Classification of changes in type de-

sign. 

21.95

Approval of minor changes in type de-

sign. 

21.97

Approval of major changes in type de-

sign. 

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 certifi-

cates. 

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 manufac-

turing 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. 

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