MERIT (Methane Emissions Reduction Initiative for Transparency) Project is a collaborative program by Plasticdiet Indonesia, Yaksa Pelestari Bumi Berkelanjutan (YPBB) Bandung, and the Environmental Education Center (PPLH) Bali, which develops a credible, science-based monitoring method for landfill methane performance. From the first year of implementation (2024-2025), a policy brief document has been developed as a comprehensive policy recommendation for better waste management in Indonesia.