On 23/05/2013,
you requested for the version in force on 23/05/2013
incorporating all amendments published on or before 23/05/2013.
The closest version currently available is that of 31/03/2009.
6. A person who has given a notice to the Director-General shall notify the Director-General in writing of any change in the particulars specified in the notice or affecting the notice within 7 days of the change and further notice shall be given as the Director-General may require.