Who must register with the ISA?
Nobody! The ISA registration scheme was scrapped by the Coalition Government in early 2011.
It was originally due to begin from July 2010, but was put on hold in June 2010 pending a review which eventually resulted in the decision to scrap it.
When announcing the scrapping of ISA registration the Government also announced their intent to introduce new legislation in the Protetction of Freedoms Bill which is due to complete its passage through Parliament in mid 2013.
Once the Bill has been passed, the CRB (or an equvalent body) will introduce schemes that reflect the new legislation.
Until then the current CRB Disclosure service will remain in operation.