(2)The Regulatory Fitness and Performance Programme (REFIT) fitness check shows that the Union passenger ship safety legal framework has resulted in a common safety level for passenger ships within the Union. It also shows that, as a result of the way in which Union passenger safety law has developed over time in response to differing demands and situations, there is a certain level of overlap and duplication that can and should be streamlined and simplified to reduce the administrative burden on shipowners, as well as to rationalise the effort required from Member States' maritime administrations.