The pledge coincides with the formation of an independent sustainability watchdog for the event.
Meanwhile, the Commission for a Sustainable London 2012, which will 'monitor and verify' London's pledge to host the 'most sustainable games ever', was also unveiled. It will be chaired by sustainable-business expert Shaun McCarthy.
The independent body will advise the Olympic Board and report to the public about the impact of the Games on the environment.
McCarthy said: 'The commission will work to make sure the sustainability stamp is firmly placed on the London Games, to ensure a joined-up social, economic and environmental legacy.
'We will require the Olympic bodies to demonstrate they have robust plans in place to meet their sustainability commitments. We will also challenge the 2012 programme to create a legacy of which future generations can be proud.'
The ODA claims that its new sustainability strategy will ensure that new standards will be set for the sustainable design and construction of major sports venues and infrastructure used for the Games.