[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2005]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR121.121]

[Page 426]
 
                     TITLE 14--AERONAUTICS AND 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. 121.121  En route navigational facilities.

    (a) Except as provided in paragraph (b) of this section, no 
certificate holder conducting supplemental operations may conduct any 
operation over a route unless nonvisual ground aids are--
    (1) Available over the route for navigating airplanes within the 
degree of accuracy required for ATC; and
    (2) Located to allow navigation to any airport of destination, or 
alternate airport, within the degree of accuracy necessary for the 
operation involved.
    (b) Nonvisual ground aids are not required for--
    (1) Day VFR operations that can be conducted safely by pilotage 
because of the characteristics of the terrain;
    (2) Night VFR operations on lighted airways or on routes that the 
Administrator determines have reliable landmarks adequate for safe 
operation; or
    (3) Operations on route segments where the use of celestial or other 
specialized means of navigation is approved.
    (c) Except for those aids required for routes to alternate airports, 
the nonvisual ground navigational aids that are required for approved of 
routes outside of controlled airspace are specified in the certificate 
holder's operations specifications.

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