From 1 November the functions of the Child Support Agency (CSA) formally transfer to a new body - the Child Maintenance and Enforcement Commission (CMEC).
The CMEC will have new powers to recover money from absent parents
The change is part of a wider shake-up in the way child maintenance is enforced.
At the heart of the new system is the idea that more parents should try to reach voluntary agreements on child maintenance, leaving the the new body - which will have beefed-up powers - to chase the toughest cases of parents who refuse to pay maintenance.
Stephen Geraghty - who was the chief executive of the CSA - is the new child maintenance commissioner at the CMEC.
He told us more about the changes.
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