The Universal Credit, Personal Independence Payment, Jobseeker’s Allowance and Employment and Support Allowance (Decisions and Appeals) Regulations (Northern Ireland) 2016

17.  The superseding decision takes effect—

(a) from the date on which the claimant ought to have notified the change of circumstances; or

(b) if more than one change has taken place between the date from which the decision to be superseded took effect and the date of the superseding decision, from the date on which the first change ought to have been notified.