RE-APPORTIONMENT OF OVERHEADS (Redistribution of overheads of service departments to production departments: SECONDARY DISTRIBUTION OF OVERHEADS) The costs of service department are borne by the production departments. This process of redistribution of the cost of the service department to the production department is known as “SECONDARY DISTRIBUTION OF OVERHEADS.” Under secondary distribution, the service department expenses are transferred to the production department only. Re-apportionment of overheads is done with the following methods: 1. Repeated distribution method 2. Simultaneous equation method