Department of Justice, Home Affairs and Migration Copies of the central registers maintained by the Department of Justice, as per its obligations as set out under Department of Public Expenditure and Reform Circular 01/2020: Procedures for Offsetting the Emissions Associating with Official Air Travel. Under the Circular, it is expected that registers contain details of individual flights, associated greenhouse gas emissions, and the monetary value calculated for each flight to be paid into the Climate Action Fund by the Department.