My apologies, the link is a bit vague and is not the easiest section to find unless you know it's there!
If you click on the "About BAA (Whichever airport you have selected)" you get another menu where you can select "publications".
There is then a link to download an Adobe version of "conditions of use" for the relevant airport.
As an example the followuing link should take you to the Heathrow page.
http://www.heathrowairport.com/porta...00147e120a____