ADR.OPS.B.036 Operations on specially prepared winter runways
(a) An aerodrome operator may, subject to the prior approval of the competent authority, establish and use procedures for the operation of aeroplanes on specially prepared winter runways, when the contaminant type is compacted snow or ice. Specially prepared winter runways may be associated with primary RWYCC 4; however, if treatment does not justify a RWYCC 4, the normal procedure in accordance with point ADR. OPS.B.037 shall apply.
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ADR.OPS.B.037 Assessment of runway surface condition and assignment of runway condition code
Whenever the contaminants listed in points ADR.OPS.A.060(a) to (e) are present on the surface of a runway, the aerodrome operator shall:
(a) assign a RWYCC based on the type and depth of the contaminant and temperature;
(b) inspect the runway whenever the runway surface condition may have changed due to meteorological conditions, assess the runway surface condition and assign a new RWYCC;
(c) use special air-reports to trigger reassessment of RWYCC.’;