Today, Parliaments mostly lack the capacity and established mechanisms that would enable them to conduct effective oversight of government action and progress on the G20 programme of work. Building on research into existing good practice of policy and legislative scrutiny, the briefing highlights a number of key ways in which Parliaments could strengthen their own work in relation to global governance issues. Having a constructive yet critical and proactive partner in their national Parliaments will also help the G20 governments ensure that they live up to their promises and remain accountable to those they claim to serve.