The preservation of the environment is a main challenge for the agricultural sector, including for broiler chicken farming, both in terms of reducing environmental impact and increasing the value of the services provided. The CAP’2ER® environmental diagnostic assessment tool has been adapted by ITAVI for the poultry industry to assess its contributions: it means Automated Environmental Performances Calculation for Responsible Farming. This two-level tool allows farmers to assess the environmental footprint of their farm and identify action levers to improve their impact. Level 1 (simplified and free) targets the farmers and advisors, with the aim of raising awareness of their environmental performances through a rapid initial assessment. This one-hour online self-diagnosis assesses the environmental impact of one production unit (greenhouse gas and ammonia emissions, fossil fuel consumption) and its positive contributions (maintaining biodiversity, carbon storage, nutritional performance). The upcoming level 2 (more complex and requesting payment), expected by end-2024/beg-2025, aims to facilitate the implementation of proactive measures identified during the assessment as strategies for reducing their environmental impact. It will expand the criteria from level 1 and will allow with advisor assistance to take and implement an action plan at the farm-level. In summary, CAP’2ER® offers an accessible and cost-effective way for broiler farmers to assess and enhance their environmental performance.