Former HIH director Rodney Adler and MD Ray Williams have been transferred from high security Silverwater prison in Sydney to the jails where they will serve their four-and-a-half year sentences.

NSW Corrective Services says Mr Adler and Mr Williams are regarded as minimum-security inmates. Mr Adler is now serving his sentence in Long Bay jail, and Mr Williams has been sent to Parramatta prison, but will be later transferred to Cessnock Correctional Centre.