<p>The Home Office recognises the following four trade unions for collective bargaining purposes in respect of specific grades of staff:</p><ul><li>FDA (formerly the First Division Association)</li><li>ISU (formerly the Immigration Service Union)</li><li>Prospect</li><li>Public and Commercial Services (PCS) Union</li></ul><p>As part of the regular engagement process the Home Office provides these unions with human resources information regarding staffing, pay, sickness absence and diversity and inclusion.</p><p>In addition to the provision of this regular data the Department provides the unions, on an ad hoc basis, with HR data in respect of specific issues such as on matters that are subject to negotiation or consultation at a particular point in time.</p>