Main Protective Bonding, 1 or 2 conductors?

[cablemonkey]

I had a search with no joy.
I am trying to find a reg to state if its ok or not to use 1 continues 10mm conductor for gas and water Main Protective Bonding . Having a look at a new CU install where there is no MPB and lighting CPC at all . Fun Fun Fun
:clap:Thanks

 

[telectrix]

1 cable can be used as long as it's continuous.

 

[tony mc]

This is covered in GN8 which covers Earthing and Bonding in much more details.