As a CRI, you don't need to ba attached to an ATO for all of the training you conduct. It is only training towards ISSUE or RENEWAL of Part-FCL licence or rating where training must be carried out within an ATO. Since a CRI can only provide training to a licence holder then it is only really applicable to issue or renewal of a Part-FCL rating. For all other cases, a CRI may continue to act independently.
http://www.caa.co.uk/docs/33/srg_lts...tructorsv2.pdf
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