SolvedIEIM570300 | What and how to exchange: How to exchange a ruling
From HM Revenue & Customs · International Exchange of Information Manual
IEIM570300: What and how to exchange: How to exchange a ruling
Completed templates (IEIM570900) should be sent, together with a copy of the clearance application and ruling, to the JITSIC email address.
JITSIC, as the Competent Authorities, will review and exchange the ruling using the appropriate legal gateway.