Banks may reflect the risk-reducing effects of guarantees and credit derivatives, either in support of an individual obligation or a pool of exposures, through an adjustment of either the PD or LGD estimate, subject to the minimum requirements in paragraphs CA-5.8.91 to CA-5.8.100. Whether adjustments are done through PD or LGD, they must be done in a consistent manner for a given guarantee or credit derivative type.