This new policy takes effect from 01/07/2008 (current financial year). People that has an income below the threshold does not need to buy private medical insurance and does not need to pay the surcharge.
The current threshold is 70K for single and 140K for famliy.
The person that has an income over the threshold and does not have private medical insurance will no need to pay surcharge as well on condition that he/she buys the private medical insurance before 1st Jan 2009.