[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR21.120]

[Page 138]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 21_CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS--Table of 
Contents
 
                Subpart E_Supplemental Type Certificates
 
Sec.  21.120  Responsibility of supplemental type certificate holders to 
provide written permission for alterations.

    A supplemental type certificate holder who allows a person to use 
the supplemental type certificate to alter an aircraft, aircraft engine, 
or propeller must provide that person with written permission acceptable 
to the FAA.

[Doc. No. FAA-2003-14825, 71 FR 52258, Sept. 1, 2006]