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(a) The following obstacle limitation surfaces must be established for a runway—
(1) conical surface; and
(2) inner horizontal surface; and
(3) approach surface; and
(4) transitional surfaces.
(b) The following additional obstacle limitation surfaces must be established for a precision approach runway category II or III—
(1) inner approach surface; and
(2) inner transitional surfaces; and
(3) balked landing surface.
(c) For a non-instrument runway, new objects or extensions of existing objects must not be permitted above an approach or transitional surface except when the new object or extension would be shielded by an existing immovable object, or an aeronautical study determines that the object would not adversely affect the safety or significantly affect the regularity of operations of aircraft.
(d) For a non-precision approach runway, new objects or extensions of existing objects must not be permitted above an approach surface within 3000 m of the inner edge or above a transitional surface except when the new object or extension would be shielded by an existing immovable object, or an aeronautical study determines that the object would not adversely affect the safety or significantly affect the regularity of operations of aircraft.
(e) For a precision approach runway fixed objects must not be permitted above the inner approach surface, the inner transitional surface or the balked landing surface, except for frangible objects which because of their function must be located on the strip. Mobile objects must not be permitted above these surfaces during the use of the runway for landing.
(f) For a precision approach runway, new objects or extensions of existing objects must not be permitted above an approach surface or a transitional surface except when the new object or extension would be shielded by an existing immovable object, or an aeronautical study determines that the object would not adversely affect the safety or significantly affect the regularity of operations of aircraft.
(a) A take-off climb surface must be established for a runway meant for take-off:
(b) New objects or extensions of existing objects must not be permitted above a take-off climb surface except when the new object or extension would be shielded by an existing immovable object, or an aeronautical study determines that the object would not adversely affect the safety or significantly affect the regularity of operations of aircraft.
