Section 21.19

14 CFR Ch. I (1-1-19 Edition)

a type certificate will not be issued,
within the time limit established under
paragraph (c) of this section, the applicant may - 
(1) File a new application for a type
certificate and comply with all the provisions of paragraph (a) of this section
applicable to an original application;
or
(2) File for an extension of the original application and comply with the
applicable airworthiness requirements
of this subchapter that were effective
on a date, to be selected by the applicant, not earlier than the date which
precedes the date of issue of the type
certificate by the time limit established under paragraph (c) of this section for the original application.
(e) If an applicant elects to comply
with an amendment to this subchapter
that is effective after the filing of the
application for a type certificate, he
must also comply with any other
amendment that the FAA finds is directly related.
(f) For primary category aircraft, the
requirements are:
(1) The applicable airworthiness requirements contained in parts 23, 27, 31,
33, and 35 of this subchapter, or such
other airworthiness criteria as the
FAA may find appropriate and applicable to the specific design and intended
use and provide a level of safety acceptable to the FAA.
(2) The noise standards of part 36 applicable to primary category aircraft.
[Doc. No. 5085, 29 FR 14564, Oct. 24, 1964, as
amended by Amdt. 21-19, 32 FR 17851, Dec. 13,
1967; Amdt. 21-24, 34 FR 364, Jan. 10, 1969;
Amdt. 21-42, 40 FR 1033, Jan. 6, 1975; Amdt.
21-58, 50 FR 46877, Nov. 13, 1985; Amdt. 21-60,
52 FR 8042, Mar. 13, 1987; Amdt. 21-68, 55 FR
32860, Aug. 10, 1990; Amdt. 21-69, 56 FR 41051,
Aug. 16, 1991; Amdt. 21-70, 57 FR 41367, Sept.
9, 1992; Amdt. 21-90, 72 FR 63404, Nov. 8, 2007;
Doc. No. FAA-2015-1621, Amdt. 21-100, 81 FR
96688, Dec. 30, 2016]

spaschal on DSK3GDR082PROD with CFR

Section 21.19 Changes requiring a new type
certificate.
Each person who proposes to change
a product must apply for a new type
certificate if the FAA finds that the
proposed change in design, power,
thrust, or weight is so extensive that a
substantially complete investigation of

compliance with the applicable regulations is required.
[Doc. No. 28903, 65 FR 36265, June 7, 2000]

Section 21.20 Compliance with applicable requirements.
The applicant for a type certificate,
including an amended or supplemental
type certificate, must - 
(a) Show compliance with all applicable requirements and must provide the
FAA the means by which such compliance has been shown; and
(b) Provide a statement certifying
that the applicant has complied with
the applicable requirements.
[Doc. No. FAA-2006-25877, Amdt. 21-92, 74 FR
53385, Oct. 16, 2009]

Section 21.21 Issue of type certificate: normal, utility, acrobatic, commuter,
and transport category aircraft;
manned free balloons; special classes of aircraft; aircraft engines; propellers.
An applicant is entitled to a type certificate for an aircraft in the normal,
utility, acrobatic, commuter, or transport category, or for a manned free balloon, special class of aircraft, or an aircraft engine or propeller, if - 
(a) The product qualifies under Section 21.27;
or
(b) The applicant submits the type
design, test reports, and computations
necessary to show that the product to
be certificated meets the applicable
airworthiness, aircraft noise, fuel venting, and exhaust emission requirements of this subchapter and any special conditions prescribed by the FAA,
and the FAA finds - 
(1) Upon examination of the type design, and after completing all tests and
inspections, that the type design and
the product meet the applicable noise,
fuel venting, and emissions requirements of this subchapter, and further
finds that they meet the applicable airworthiness requirements of this subchapter or that any airworthiness provisions not complied with are compensated for by factors that provide an
equivalent level of safety; and
(2) For an aircraft, that no feature or
characteristic makes it unsafe for the

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