b) the manner in which taxation by Sliammon Government will be co-ordinated with the existing federal taxation system, including the extent, if any, to which Canada may agree to share federal tax room; and ###>b) la coordination de la taxation par le gouvernement sliammon avec le système de taxation fédéral existant, y compris la mesure, s'il en est, dans laquelle le Canada conviendra de partager la marge fiscale;