In 2012, Lefier asked DEMO to review its condition assessment and maintenance planning. DEMO has verified the condition assessment related measurements and multi-annual maintenance plans in terms of reliability, completeness and accuracy of their inventories. DEMO has also examined whether the current procedures and agreements regarding inspections and maintenance planning have been adequately elaborated and recorded. This has led to the development of an inspection protocol that guarantees the quality of Lefier's inspections. In addition, DEMO has given the training to keep the knowledge about RE Maintenance within Lefier up-to date .