Big insurers get key exemption in proposed British audit rules

By Huw Jones LONDON (Reuters) - Britain's biggest insurers will be exempt from having their most important indicator of financial health externally audited under proposals issued by the Bank of England on Friday. New European Union rules will require British-based insurance firms from January to meet a minimum solvency capital requirement, or SCR, to show they have enough funds to meet policyholder commitments. Insurers that don't use internal models - but use a standard calculation method set o