(58)Non-significant changes to models and parameters that do not increase the risks for a Union CCP should be able to be approved swiftly. Therefore, in line with the objective of having safe and resilient Union CCPs while building a modern and competitive Union clearing ecosystem able to attract business, an accelerated procedure for non-significant changes to models and parameters should be introduced in order to limit the challenges and uncertainty that currently exist in the supervisory validation procedure of such changes. Where a change is not significant, an accelerated validation procedure should apply. Such a procedure is intended to facilitate CCPs’ ability to respond promptly to market developments that might require amendments to their risk models and parameters. Therefore, the procedure for the validation of such changes to risk models and parameters should be simplified.