This policy brief presents the concept of a nationally determined contribution (NDC) greenhouse gas (GHG) balance sheet. The concept was elaborated in a technical paper, which informed an official submission by South Africa. This brief should be read together with both of those documents. It adds a table, highlights the practical steps to be taken and answers some frequently asked questions about the NDC GHG balance sheet. The brief thereby seeks to focus on the issues requiring attention at COP24.