On Sat, 6 Jan 2007 00:39 +0000 (GMT Standard Time), Colin Rosenstiel
wrote:

Section K still contains full details regarding fares from the
Boundary Zones, as usual. So they do not appear to have been
withdrawn. HTH

Not in the online version as far as I could find. There `is only section
K1 there. The map has a link but it gives me a 404 error.

The actual fare tables aren't online (they never have been). But in
section K1, the rules for the issuing of BZ tickets are detailed on
pages K1.5 and K1.6.