(6)The calibration of the Solvency Capital Requirement pursuant to Directive 2009/138/EU is risk-based and is intended to provide the right incentives across the different forms of securitisation investments. In order to achieve that objective, the level of the calibration and the risk sensitivity across tranches should be commensurate with the features of STS securitisation, and consistent with the prudential requirements developed for credit institutions and investment firms. Therefore, the existing provisions of Delegated Regulation (EU) 2015/35 on calibration for ‘type 1 securitisation’ should be replaced by a more risk-sensitive calibration for STS securitisation covering all possible tranches that also meet additional requirements in order to minimise risks.