A participatory gender audit is a tool and a process based on a participatory methodology to promote organizational learning at the individual, work unit and organizational levels on how to practically and effectively mainstream gender. A gender audit is essentially a “social audit”, and belongs to the category of “quality audits”, which distinguishes it from traditional “financial audits”. It considers whether internal practices and related support systems for gender mainstreaming are effective and reinforce each other and whether they are being followed. It establishes a baseline; identifies critical gaps and challenges; and recommends ways of addressing them, suggesting possible improvements and innovations. It also documents good practices towards the achievement of gender equality. A gender audit enhances the collective capacity of the organization to examine its activities from a gender perspective and identify strengths and weaknesses in promoting gender equality issues. It monitors and assesses the relative progress made in gender mainstreaming and helps to build organizational ownership for gender equality initiatives and sharpens organizational learning on gender. The International Training Centre of the ILO offers a certification process for gender auditors.