[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR121.125]

[Page 355-356]
 
                     TITLE 14--AERONAUTICSAND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 121--OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL
 OPERATIONS--Table of Contents
 
   Subpart F--Approval of Areas and Routes for Supplemental Operations
 
Sec. 121.125  Flight following system.

    (a) Each certificate holder conducting supplemental operations must 
show that it has--
    (1) An approved flight following system established in accordance 
with

[[Page 356]]

subpart U of this part and adequate for the proper monitoring of each 
flight, considering the operations to be conducted; and
    (2) Flight following centers located at those points necessary--
    (i) To ensure the proper monitoring of the progress of each flight 
with respect to its departure at the point of origin and arrival at its 
destination, including intermediate stops and diversions therefrom, and 
maintenance or mechanical delays encountered at those points or stops; 
and
    (ii) To ensure that the pilot in command is provided with all 
information necessary for the safety of the flight.
    (b) A certificate holder conducting supplemental operations may 
arrange to have flight following facilities provided by persons other 
than its employees, but in such a case the certificate holder continues 
to be primarily responsible for operational control of each flight.
    (c) A flight following system need not provide for in-flight 
monitoring by a flight following center.
    (d) The certificate holder's operations specifications specify the 
flight following system it is authorized to use and the location of the 
centers.

[Doc. No. 6258, 29 FR 19195, Dec. 31, 1964, as amended by Amdt. 121-253, 
61 FR 2611, Jan. 26, 1996]