13a. Underlines the importance of establishing common implementation periods for NDCs although many parties to the UNFCCC have five or ten year timeframes, others have shorter implementation periods or no specified time frame at all; notes that continuing with different time frames could negatively impact future negotiations on climate ambition; believes that common implementation periods for NDCs would ensure all Parties update and communicate their commitments in unison and improve the aggregation and measurement of global efforts; supports the introduction of a five-year common timeframe for all post-2030 NDCs, which corresponds with the ambition cycle of the Paris Agreement, and is without detriment to additional long-term commitments that parties may pursue domestically;