This section of the Residential Tenancies Act 1986 lists other laws that were changed because of this new act. The laws that were changed are the Housing Act 1955, the Legal Aid Act 1969, the Public Trust Office Act 1957, and the Summary Proceedings Act 1957.
These changes were made to make sure that all the laws work well together. When a new law is made, sometimes other laws need to be updated too. This helps to keep everything clear and consistent.
You don’t need to know all the details about these other laws. The important thing to understand is that when the Residential Tenancies Act 1986 was created, it affected some other laws too.