The thousands of companies involved in London's Olympics can now advertise their contribution, after restrictions were lifted.
The government has given 2-million pounds to the British Olympic Association to operate the new "supplier recognition scheme".
The association will license firms allowing them to highlight their work at trade shows.
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The station, which saw 44m people commuters use it in 2016/2017, will be transformed into a dining room complete with Christmas decorations.
Part of the monster fatberg will go on display in the Museum of London, while the rest of it will be converted into biodiesel.
Major engineering projects at key London stations mean hundreds of trains will be cancelled or diverted.