History — 302.401

302.401 The following definitions apply in this Division. AMSCR or Aircraft Movement Surface Condition Report means a report that details the surface conditions of all movement areas at an airport, including runways and taxiways. ( AMSCR ou compte rendu de l’état de la surface pour les mouvements d’aéronefs ) contaminant means material that collects on a surface, including standing water, snow, slush, compacted snow, ice, frost, sand, and ice control chemicals. ( contaminant ) CRFI or Canadian Runway Friction Index means the average of the friction measurements taken on runway surfaces on which freezing or frozen contaminants are present. ( CRFI ou coefficient canadien de frottement sur piste ) dry snow means snow that does not contain sufficient water to allow the crystals to stick together or bond to a surface. ( neige sèche ) ice control chemicals means chemicals used to prevent ice formation, to prevent ice from bonding to a surface, or to break up or melt ice on a surface. ( produits chimiques de déglaçage ) priority 1 area means an airside area that, based on prevailing winds or operational requirements, is necessary to maintain the operational capability of an airport, and i…