Reducing greenhouse gas (GHG) emissions, particularly enteric methane (CH₄) from cattle, is a key challenge in achieving carbon neutrality by 2050. The Methane 2030 program (2023–2028) addresses this issue by pursuing a 30% reduction in CH₄ emissions from French cattle farming within ten years, while maintaining milk and meat production levels. Combining a network of experimental farms and commercial herds, the program uses multiple measurement and estimation methods to develop reference data and identify effective low-emission strategies. Several levers are explored, including feeding practices, nutritional additives, genetic improvement, and herd management innovations. Coordinated by a consortium of industry, research, and development partners, Methane 2030 will deliver an integrated “toolbox” for emission mitigation. Built around the CAP’2ER® assessment tool, genomic selection, and livestock advisory services, this toolbox will provide practical and science-based solutions to support sustainable, low-emission cattle production systems in France.