[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR137.21]

[Page 1161]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 137_AGRICULTURAL AIRCRAFT OPERATIONS--Table of Contents
 
                      Subpart B_Certification Rules
 
Sec.  137.21  Duration of certificate.

    An agricultural aircraft operator certificate is effective until it 
is surrendered, suspended, or revoked. The holder of an agricultural 
aircraft operator certificate that is suspended or revoked shall return 
it to the Administrator.