(a)
"Northern Control Area" - Airspace FL230 and above.
(b) "Arctic Control Area" - Airspace FL280 and
above. (NAV CANADA/GPH 204, CH 4, SEC 1, 3 & CH 7, SEC 2)
c.
WITHIN THE SOUTHERN CONTROL AREA - (Also see "Within the Southern Domestic Airspace" above). Standard procedures for controlled High Level flight apply except within the Canadian Minimum Performance Specifications (CMNPS) Airspace and those portions of the Edmonton FIR, generally N of Edmonton, and in the Winnipeg and Montreal FIRs where the Northern Track System and commonly used routes exist. Within these areas there are time and Flight Level restrictions for random route flight that track closer than 90 NM (60 NM for CMNPS certified aircraft) to a published airway or Northern Track and possibly the commonly used routes. These restrictions are the same as imposed in the Northern Control Area, for which see paragraph d.(1) below.
d.
WITHIN THE NORTHERN CONTROL AREA - (Also see "Within the Northern Domestic Airspace" above).
(1) RANDOM ROUTE PLANNING -
(a) Pilots may file random tracks (with certain exceptions specified in paragraph (b) and (c) below) but should, as a recommended practice, endeavor to include the preferred established airways and/or tracks in the "additional information" part of the flight plan. Should it be necessary to reroute aircraft, ATC will, if traffic conditions permit, reclear aircraft via the indicated airways and/or tracks. The route of flight should be indicated by listing sufficient geographical points to adequately portray the intended track, identifying fixes and turning points by station location identification or latitude/longitude as appropriate. Where designated High Level Airways are available list them. Also list the significant reporting points that fall within the requirements detailed in paragraph (2) below.
a. WITHIN THE SOUTHERN DOMESTIC AIRSPACE -(b) Between the hours of 1400-0400Z++ daily, pilots
intending to fly an off airway track which is parallel to and within 90 NM of High Level airways shall flight plan via airways. In the case of CMNPS certified aircraft, the 90 NM is reduced to 60 NM.
(c)
During the period from May 15 to October 15, between the hours of 1500-0200Z++ daily, pilots intending to fly CMNPS certified aircraft on an off airway track which is parallel to and within 60 NM of a Northern or an Arctic Track between Flight Levels 280 and 390 shall flight plan via an established track. (See Preferred Routes/Tracks for explanation of the Northern Track System).
(d)
It is recognized that there are routes of flight which cannot make use of established airways and tracks - such as between Iqaluit (CYFB) and Resolute (CYRB) or Churchill (CYYQ) and Yellowknife (CYZF), etc. In such cases pilots may file via the most appropriate route. However, ATC may, when traffic conditions warrant, clear aircraft via routes other than those flight planned.
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