(c) Altitude(s)/Flight Level(s).

(d)
Point and ETA where original route will be resumed.

(e) Flight conditions (IFR or VFR).

(f)
Any further deviation that may become necessary.

(g)
Advise if aircraft is equipped with functioning airborne Radar.

NOTE: When flying within the Class A Airspace, the proposed detour should be defined by appropriate navigational aids (however, not necessarily over or directly between such aids). When this is not possible and traffic exists at the desired altitude/Flight Level, Air Traffic Control will be unable to approve the detour.

(2)
FAA CONTROLLED OCEANIC INFLIGHT CHANGES - Procedures for weather deviations and other contingencies in oceanic controlled airspace. Since aircraft will not fly into known areas of weather, weather deviation requests should take priority over routine requests. If there is conflicting

traffic and ATC is unable to establish vertical separation, ATC shall:
(a) Advise the pilot that standard separation cannot be applied.
(b) If possible, suggest a course of action.
NOTE: ATC may suggest that the pilot climb or descend to a contingency altitude (1,000 feet above or below that assigned if operating above FL290: 500 feet above or below that assigned if operating at or below FL290).
(c)
To the extent practical, provide traffic information to all affected aircraft. Phraseology; "standard separation not available, deviate at pilot's discretion; suggest climb (or descent) to (appropriate altitude): traffic (position and altitude); report deviation complete."

(d)
At the completion of the deviation. Standard separation shall be established as soon as practicable.

NOTE: In the event that pilot/controller communications cannot be established or a revised ATC clearance is not available, pilots will follow standard inflight procedures.

(3)
When the altitude/Flight Level instructions in an Air Traffic Control clearance requires that a pilot "maintain" his assigned altitude/Flight Level while in Control Areas, changes while enroute should be requested prior to the time the change is desired.

NOTE: Due to traffic conditions, it is frequently necessary for Air Traffic Control to change the altitude/Flight Level or route originally assigned.

(4)
Pilots entering Flight Information Region/Upper Information Region borders and Upper Control Areas will contact the appropriate Area Control Center in the next area five minutes before entry into that area, to confirm Air Traffic Control clearance within the next area, unless cleared by the adjacent Area Control Center.

h. IFR CLEARANCE WITH VFR RESTRICTIONS

(1)
A pilot on an IFR flight plan operating in VFR weather conditions may request VFR ON TOP in lieu of an assigned altitude. This would permit the pilot to select an altitude or Flight Level of his choice (subject to any Air Traffic Control restrictions).

(2)
Pilots desiring to climb through a cloud, haze, smoke or other Meteorological formation and then either cancel their IFR flight plan or operate VFR ON TOP may request a climb to VFR ON TOP. The Air Traffic Control authorization shall contain either a top report or a statement that no top report is available, and a request to report reaching VFR ON TOP. Additionally, the Air Traffic Control authorization may contain a clearance limit, routing and an alternative clearance if VFR ON TOP is not reached by a specified altitude.

(3)
A pilot on an IFR flight plan, operating in VFR conditions, may request to climb/descend in VFR conditions.

(4)
Air Traffic Control may not authorize VFR ON TOP/VFR CONDITIONS operations unless the pilot requests the VFR operation or a clearance to operate in VFR conditions will result in Noise Abatement benefits where part of the IFR departure route does not conform to a Federal Aviation Administration approved Noise Abatement route or altitude.
　
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