Andrew Bailey, head of the prudential business unit at the Financial Services Authority, will set out details of the new Prudential Regulatory Authority today.
At an event in London for banks, insurers and building societies Mr Bailey will discuss how the PRA will supervise firms and its statutory objectives.
Two documents 'The PRA's approach to banking supervision' and 'The PRA's approach to insurance supervision' were published last week. These detailed what the PRA expects from firms, the new threshold conditions, the PRA's use of legal powers and the basis for PRA decisions.

The Prudential Regulatory Authority will come into power in April 2013 following the successful passing of the Financial Services Bill.
Mr Bailey said: "The documents we published last week set out how we intend to implement the approach in practice. It will be based on setting clear concise standards for all PRA-regulated firms.
"The PRA's approach will be very clearly judgement-based rather than focusing on narrow rules, and it will be forward-looking, taking into account a range of possible risks to our objectives and the stability of firms.
"This will not be a zero failure regime, but one where firms can fail in an orderly way without major detriment to the wider system. We will be here to ensure the safety and soundness of firms and the stability of the financial system. We want, and need, to ensure that the public can put their trust in a safe and sound financial system for the future."