Credit institutions using the Standardised Approach under Articles 78 to 83 or using the IRB Approach under Articles 84 to 89, but not using their own estimates of LGD and conversion factors under Articles 87 and 88, may recognise credit risk mitigation in accordance with this Subsection in the calculation of risk-weighted exposure amounts for the purposes of Article 75 point (a) or as relevant expected loss amounts for the purposes of the calculation referred to in point (q) of Article 57, and Article 63(3).