Narrowboat owners, such as Brian Greaves on the Kennet and Avon canal, fear for their lifestyles as the new body may enforce stricter rules on temporary moorings.
Navigation is only possible for the first 100 metres from the downstream end where a few temporary moorings are available.
His heels had barely cleared the door when the car snapped free of its temporary moorings and slid into the creek.
The boat has been in a temporary mooring since the organization lost its home port eight months ago.
The most immediate effect of a state of emergency would be to bring the Bibby Venture into active service at its present temporary mooring at the Brooklyn Army Terminal.
There are hundreds of places for mooring boats on the Thames - and this boat may have needed only a temporary mooring.
Two steel wall struts were tom out of their temporary moorings, and whole panels of metal siding were tipped free.
Following Shell's decision to pursue only on-shore disposal options, as favoured by Greenpeace and its supporters, Brent Spar was given temporary moorings in a Norwegian fjord.
The first barge, the Bibby Venture, has already been put into emergency service at a temporary mooring at the Brooklyn Army Terminal.