1In section 57(4) of the Magistrates' Courts Act 1952 (proceedings to be treated as domestic proceedings) after the words " Act, 1920 " there shall be inserted the words " or registered in a magistrates' court under Part I of the Maintenance Orders (Reciprocal Enforcement) Act 1972 " and for the words " or confirmed ", where last occurring, there shall be substituted the words " confirmed or registered ".