87.As for an EEA firm, a Treaty firm ceases to qualify for authorisation under Schedule 4 if the relevant home State authorisation is withdrawn.  The Authority may remove any additional permission under Part IV, but loss of home State authorisation does not necessarily mean that Part IV permission would be withdrawn.  The Authority can also cancel an authorisation on request from a Treaty firm.
Commentary on Sections Part Iii: Authorisation and Exemption Section 35: Treaty firms