79. The future relationship must ensure open and fair competition. Provisions to ensure this should cover state aid, competition, social and employment standards, environmental standards, climate change, and relevant tax matters, building on the level playing field arrangements provided for in the Withdrawal Agreement and commensurate with the overall economic relationship. The Parties should consider the precise nature of commitments in relevant areas, having regard to the scope and depth of the future relationship. These commitments should combine appropriate and relevant Union and international standards, adequate mechanisms to ensure effective implementation domestically, enforcement and dispute settlement as part of the future relationship.