 The report formed the basis for a subsequent bill, which became the Land Drainage Act 1930 when it became law on 1 August 1930.It repealed most of the legislation that had preceded it, with 16 acts dating from 1531 to 1929 falling into this category, and another three were amended.When the Act was published, however, it contained only 47 catchment areas of the original 100 suggested by the Royal Commission.