House of Commons Standing Order 14 says: - (1) Save as provided in this order, government business shall have precedence at every sitting.
(2) Twenty days shall be allotted in each session for proceedings on opposition business, seventeen of which shall be at the disposal of the Leader of the Opposition and three of
which shall be at the disposal of the leader of the second largest opposition party; and matters selected on those days shall have precedence over government business.
The first Opposition Day of the new 2007/08 session will be held today. The Conservatives have selected two half day debates on (1) healthcare associated infections and (2) the failure of the government to pursue school reform