---
kind: "section"
citation: "14 C.F.R. § 21.19"
title: "14"
number: "21.19"
heading: "Changes requiring a new type certificate."
url: "https://uscodex.org/cfr/14/21.19"
---

# §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.


## Notes

### Amendments

[Doc. No. 28903, 65 FR 36265, June 7, 2000]

### Source

Source: Docket No. 5085, 29 FR 14564, Oct. 24, 1964, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7572; 49 U.S.C. 106(f), 40105, 40113, 44701-44702, 44704, 44707, 44709, 44711, 44713, 44715, 45303.

### Amendments

[Doc. No. 28903, 65 FR 36265, June 7, 2000]