(65)Provision should be made to lay down a standard formula for the calculation of the Solvency Capital Requirement, to enable all insurance and reinsurance undertakings to assess their economic capital. For the structure of the standard formula, a modular approach should be adopted, which means that the individual exposure to each risk category should be assessed in a first step and then aggregated in a second step. Where the use of undertaking-specific parameters allows for the true underwriting risk profile of the undertaking to be better reflected, this should be allowed, provided such parameters are derived using a standardised methodology.