Couldn't see the relevant thread and too lazy to search.
Happy Birthday to Brian Fowler who Simon undoubtedly knows much better than me.
The oldest member I guess. last post was apparently 2006 so I hope he still looks in. i looked up the website mentioned in his biodata and extracted -
ISO.22000 or BRC?
Although both ISO.22000 and BRC Global Standards are designed to be audited by accredited Third Party Certification Bodies, the BRC standards have been specifically developed to address the "due diligence" laws in the United Kingdom. For this reason they have been divided into several different sectors and are highly prescriptive in their requirements. It therefore seems unlikely that ISO.22000, with its generic format, will replace BRC in this particular market.
However, retailers outside the United Kingdom will probably be keen to adopt a common standard which can be applied through all levels of their supply chain, supplementing or replacing ISO 9001 which has otherwise been the only practical alternative.
Looks pretty accurate at the moment.

Kind Regards / Charles.C