It is hoped the charter will make the process of sourcing London hotel rooms for events that require 1,000 beds or more easier by standardising terms such as room rates, allocation release times and commission rates.
"This charter is incredibly important for supporting larger groups coming into the capital," said Visit London associations sales manager Becky Graveney. "It reinforces the fact that London both wishes to attract larger congresses and make the room booking process easier for large groups."
Visit London commercial director David Hornby added: "London's growing hotel offer is incredibly important to the tourism fabric and the infrastructure of the capital especially with our future that includes the London 2012 Olympic and Paralympic Games and many more major events and congresses."
The visitor organisation worked with 12 major hotel groups to create the charter, which represents over 39,598 hotel rooms in London - approximately 39% of the overall bedrooms available in the capital.
The charter will be an on-going document that new hotels can sign up to.
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