Royal Bank of Scotland Group plc (NYSE:RBS) (LON:RBS), based in Edinburgh, scotched suggestions for fresh capital raising by emphasizing that it would stick to its plan to strengthen its capital through a further shrinkage of its investment bank and its planned initial public offering of a stake in its American Division, the Citizens Financial Group during 2015. Regulators are mandating the capital requirements to protect banks against possible future shocks to the banking system, and prevent them running out of money in the event of another credit crunch. The Prudential Regulation Authority (PRA), a unit of the Bank of England, said this morning that it had completed its review of Lloyds and RBS and that it was comfortable with both the banks' plans.