Canadian Aviation Regulations (SOR/96-433)

301.04 (1) When an aerodrome is closed permanently, the operator of the aerodrome shall remove all of the markers and markings installed at the aerodrome.

(2) The operator of an aerodrome, other than a water aerodrome, shall install red flags or red cones along the boundary of an unserviceable movement area.

(3) Subsections (4) to (8) do not apply in respect of any manoeuvring area or part thereof that is closed for 24 hours or less.

(4) Where a runway or part of a runway is closed, the operator of the aerodrome shall place closed markings, as set out in Schedule I to this Subpart, on the runway as follows:

• (a) where the runway is greater than 1 220 m (4,000 feet) in length, a closed marking shall be located at each end of the closed runway or part thereof and additional closed markings shall be located on the closed runway or part thereof at intervals not exceeding 300 m (1,000 feet);

• (b) where the runway is greater than 450 m (1,500 feet) but not greater than 1 220 m (4,000 feet) in length, a closed marking of not less than one-half the dimensions set out in that Schedule shall be located at each end of the closed runway or part thereof and an additional closed marking of the same dimensions shall be located on the closed runway or part thereof at a point equidistant from the two markings; or

• (c) where the runway is 450 m (1,500 feet) or less in length, a closed marking of not less than one-half the dimensions set out in that Schedule shall be located at each end of the closed runway or part thereof.

(5) Where a taxiway or part of a taxiway is closed, the operator of the aerodrome shall place on each end of the closed taxiway, or part thereof, a closed marking with the dimensions set out in Schedule I to this Subpart.

(6) Where a helicopter take-off and landing area at an aerodrome is closed, the operator of the aerodrome shall

• (a) place a closed marking over the letter “H”, where the letter “H” identifies the helicopter take-off and landing area, or, where no letter identifies the helicopter take-off and landing area, over the centre of the area; or

• (b) comply with subsection (4), where the helicopter take-off and landing area is a runway.

(7) Where a manoeuvring area or part thereof is closed permanently, the operator of the aerodrome shall

• (a) obliterate all of the markings that indicate that the manoeuvring area or part thereof is open; and

• (b) subject to subsection (8), paint on the manoeuvring area or part thereof the markings required pursuant to subsections (4) to (6).

(8) Where the surface of a manoeuvring area or part thereof is snow-covered or otherwise unsuitable for painting or where the closure is not permanent, closed markings may be applied by means of a conspicuously coloured dye or may be constructed from a suitable conspicuously coloured material or product.