Section 121.91

14 CFR Ch. I (1-1-19 Edition)
(1) Terrain clearance.
(2) Minimum en route altitudes.
(3) Ground and airborne navigation
aids.
(4) Air traffic density.
(5) ATC procedures.
(b) Any route widths of other approved routes determined by the Administrator are specified in the certificate holder-s operations specifications.

Subpart E - Approval of Routes:
Domestic and Flag Operations
SOURCE: Docket No. 6258, 29 FR 19194, Dec.
31, 1964, unless otherwise noted.

Section 121.91

Applicability.

This subpart prescribes rules for obtaining approval of routes by certificate holders conducting domestic or
flag operations.

[Doc. No. 6258, 29 FR 19194, Dec. 31, 1964, as
amended by Amdt. 121-253, 61 FR 2610, Jan.
26, 1996]

[Doc. No. 28154, 61 FR 2610, Jan. 26, 1996]

Section 121.93

Route requirements: General.

Section 121.97 Airports: Required data.
(a) Each certificate holder conducting domestic or flag operations
must show that each route it submits
for approval has enough airports that
are properly equipped and adequate for
the proposed operation, considering
such items as size, surface, obstructions, facilities, public protection,
lighting, navigational and communications aids, and ATC.
(b) Each certificate holder conducting domestic or flag operations
must show that it has an approved system for obtaining, maintaining, and
distributing to appropriate personnel
current aeronautical data for each airport it uses to ensure a safe operation
at that airport. The aeronautical data
must include the following:
(1) Airports.
(i) Facilities.
(ii) Public protection. After February
15, 2008, for ETOPS beyond 180 minutes
or operations in the North Polar area
and South Polar area, this includes facilities at each airport or in the immediate area sufficient to protect the passengers from the elements and to see to
their welfare.
(iii) Navigational and communications aids.
(iv) Construction affecting takeoff,
landing, or ground operations.
(v) Air traffic facilities.
(2) Runways,
clearways
and
stopways.
(i) Dimensions.
(ii) Surface.
(iii) Marking and lighting systems.
(iv) Elevation and gradient.
(3) Displaced thresholds.
(i) Location.
(ii) Dimensions.
(iii) Takeoff or landing or both.

(a) Each certificate holder conducting domestic or flag operations
seeking a route approval must show - 
(1) That it is able to conduct satisfactorily scheduled operations between
each regular, provisional, and refueling
airport over that route or route segment; and
(2) That the facilities and services required by SectionSection 121.97 through 121.107 are
available and adequate for the proposed
operation.
The Administrator approves a route
outside of controlled airspace if he determines that traffic density is such
that an adequate level of safety can be
assured.
(b) Paragraph (a) of this section does
not require actual flight over a route
or route segment if the certificate
holder shows that the flight is not essential to safety, considering the availability and adequacy of airports, lighting,
maintenance,
communication,
navigation, fueling, ground, and airplane radio facilities, and the ability of
the personnel to be used in the proposed operation.
[Doc. No. 6258, 29 FR 19194, Dec. 31, 1964, as
amended by Amdt. 121-3, 30 FR 3638, Mar. 19,
1965; Amdt. 121-253, 61 FR 2610, Jan. 26, 1996]

Section 121.95 Route width.
(a) Approved routes and route segments over U.S. Federal airways or foreign airways (and advisory routes in
the case of certificate holders conducting flag operations) have a width
equal to the designated width of those
airways or routes. Whenever the Administrator finds it necessary to determine the width of other approved
routes, he considers the following:

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